Matthew, what you've got there is a good, nice, solid airbrush. You've made a good choice for your first "real" airbrush. It's a real step up from the old master blaster of the Badger 350, which is good for what it does. It's much better than using a spray can because it atomizes the paint better and works with a tighter pattern, so you don't have to spray from 2 feet away. And with a lot of practice and using hand stencils and masking, you can do simple camo jobs with the 350. But now you've moved up. Now that you've gone to an internal mix airbrush, you'll never go back. You'll just keep moving up from here.
Most people go from the 350 to the 200. But you've jumped over that. You've gone straight to the double action airbrushes. Soon, you'll be wanting to step up to the big boys like the Custom Micron series or the Sotar 20/20. But don't get over anxious. You really need a lot of practice time and get real good with what you now have before you move into the world of the super fine line machines.
My current inventory of airbrushes includes 2 Badger 350's, one of the very first Aztec/ Testor airbrushes ever made (that still works), a Badger Anthem 155, a Badger 150, an Iwata Eclipse HP-CS, a Sotar 20/20, and an Iwata Custom Micron SB. I never use the 350's anymore, like I said, once you go use and intrnal mix airbrush, you'll never go back to an external mix. I never use my Aztec anymore either simply because the nozzles wore out to fast and got too expensive to buy all the time. But it worked real well when I did use it. I use my Anthem 155 strictly for doing clear coats, in Future, over aircraft and armor. It has a fatter needle in it for doing the heavier medium that Future is. I use the Badger 150 and Eclipse HP-CS for doing most of the grunt work like overall paint coats and shooting flat coats and they're also real good for doing freehand camo jobs, but it requires a lot of practice to be comfortable doing this. Your airbrush is pretty comparative to the Eclipse HP-CS. I think you'll like it. I use my Sotar 20/20 only for emergency work anymore. It does everything it advertises in fine line work, and I never had trouble getting it to do what I wanted it to. I just never got comfortable useing it. It never felt good in my hand, the color cup lays back too much, allowing paint to spill out to easily, and the tip of the needle is totally exposed. The needle is super thin, and will bend or break easily if it comes in contact with anything solid. The Custom Micron SB gets used all the time. I love that airbrush. With properly thinned paint, you can spray a hair line with it. It's very solid and it feels great in the hand. I never realized how rough the paint jobs were on the models I painted with other airbrushes until I used the Micron to paint the overall color coats on my recent F-8 Crusaider. I was even able to spray weathering coats over the exhaust areas, right up to panel lines, without getting any overspray on the colored paints. All freehand, without any masking. I was amazed. And it got me a gold medal at The Tulsa Show. I don't think I would have gotten gold if I had used any of my other airbrushes. The finish was beyond any other I had ever achieved.
But the drawback with the Micron, it's expensive. And the parts for it are expensive and hard to find, even by mail order. I think the parts are just too expensive for most places to keep in stock all the time. One evening, I was cleaning it up after a paint session, and I droped the nozzle head assembly. Well, it totally crushed the the nozzle tip. I ordered a new one that night. It took close to a month for it to get to me and cost me $45. For something not much bigger than the head of a pin. And I bought it from Dixie Art, who, in my opinion, has the best prices and the quickest service of anyone out there. So there are drawbacks. It's a good thing I still had my Sotar 20/20 on hand.
I guess I should point out though, I don't use my airbrushes to paint figures (other than primer coats or something like a base coat for a shirt on a big bust). To me, figure painting is an art that I would rather approach in the more traditional ways, using paint brushes. That's just me though. I know I'm good with an airbrush, and I could probably do some nice figures with it. But for me, I don't think I would be as satisfied doing a great figure with an airbrush as I would doing a so-so figure with traditional brushes. I prefer to learn figure painting the same way the masters in this hobby did. To me, figure painting and model building are two different hobbies that just happen to go well together.
A couple of tips, get a crown head nozzle tip for your airbrush. It really helps in reducing paint spatter. And if you remove the nozzle head tip while doing tight work, it really helps. Turn down the pressure a lot and you can get the needle really close to the work. You get it just right and it's like drawing with a pencil. Just be careful not to flood the piece with paint or let the needle touch the surface.
I really hope you enjoy your airbrush. Get lots of practice with it. I can't stress this enough. Doing good work with an airbrush is 10% airbrush and 90% user. There are so many tricks you will learn on your own. And after 5 or 10 years, when you've taken it as far as you can go, then think about stepping up to something like the Micron series. That will open up a whole new world. And for God's sake, keep it clean. Learn how to take it apart and put it back together with your eyes closed, so that is like a natural reflex and you won't dread cleaning it out. It doesn't matter how good a painter you are, that all goes away when your tools don't function like they're suppose to. The more you break it down and clean it, the better you'll be at diagnosing problems when they occur. Good luck and have fun.