I have Vintage Air. I ordered it about a month ago and will be installing it in the next month I hope (my project isn't as ready as I thought it was). I've spent about 10 years researching them across many different projects but never pulled the trigger for a variety of reasons unrelated to the company. It took me long enough to see the release of the new servo style controls over the mechanical ones which seems to be the best and worst kit yet. If you really dig on the internet, you'll find lovers and haters of anything no matter how good it is. I've found threads out there that complain about the new servo controls and say that they failed multiple times and VA didn't do anything about it until they posted. Since the net never tells the whole story, I take single accounts like that with a grain of salt. Anyway, I finally ordered one because the only viable alternative was to stick with the stock stuff and all of mine is mostly junk and many pieces would need to be replaced (1974 and proud...tired but proud). The VA is a complete kit. It comes with everything you need as well as instructions to get you to the end. Based on my needs, it should be a perfect fit and since fabricating is my thing, I'm not concerned about running into any issues along the install path so that makes me even more comfortable with knowing that there usually are some adjustments needed along the way on projects like this. I've heard their support can be difficult at times (your fault not theirs) but that they typically make it right if you get the right person on the phone so "if at first you don't succeed...". None of that's really unusual today in any other industry. Beyond all of that crap, the things I liked are - (1) Remove all crap from the firewall. I needed the space for other stuff anyway and making it look cleaner under the hood was appealing to me. (2) Ditching the mechanical/vacuum controls. Mechanical will provide less issues over time however they're not modern in feel or usage. Some don't care but for my project, I like the modernization. Needed? No. (3) All new parts. I hate chasing parts. Don't mind R&R but when most of the replacement parts for the factory system are reproductions, expensive, and sometimes difficult to source, it wasn't worth it. I'd rather spend my time working on the truck. (4) Options. VA has options and factory doesn't. Adapter brackets, different compressors, you name it. Sure I can make my own brackets and could easily run different compressors but again with the excessive parts sourcing time. (5) Price. I'm not confident I could rebuild the stock system for less than I paid for VA. Maybe a little but would that be worth it? ---> These are my opinions but what it really comes down to is there aren't many choices so weigh the pro's and con's.