I love the flexibility: Alpha allows for almost any SQL-Based back-end database tables/views (SQL Server, MySQl, MS Access, Oracle, etc). That made my transition from Access much faster. Also, it's great that single platform can be used to deploy applications in the web or in a client/server desktop environment. OR, you can develop applications specifically for a mobile device (smartphone or tablet).
I wish there were better documentation. The Message Board forum is GREAT and their newly designed documentation website is an improvement... BUT, I'd love it if they had an experts "hotline" where I could get expert guidance, when I get stuck.
First, a confession: I'm a former MS Access developer (please don't judge me!). I converted to Access from DOS-based dBase IV.
I discovered Alpha 5, several years ago, from an e-mail ad (that's what it used to be called... it became "Alpha Anywhere" a couple of years ago in order to highlight its ability to develop on multiple platforms). The offered a free trial, so I decided to give it a try. Well, after 2 weeks, I was hooked.
The applications I develop now dwarf those I'd developed previously. I'm doing things that would never be possible in Access... and giving my customers "cloud" access to their apps. If you're a serious business application developer, you should certainly give it a try!
Alpha still needs to work on its documentation (their new documentation site is much improved), but their "message board" is great and the Alpha community is a terrific resource to help you get ideas and resolve issues.
I've fully installed more than a dozen full-scale applications (on public servers and my own servers) and I couldn't be more satisfied with the experience.
I'd recommend Alpha Anywhere to any developer that's in it "for the long haul." It will grow as you do.
I'm a commercial developer and I develop applications for business customers. My customers love the end products. The are fast, attractive, reliable and functional. They don't know who "Alpha" is... they just know that they like what they're using.