Great write up. I can't wait to see what your thoughts are after having it a while. I'm sure you'll be pleased. I've many times about the Form 1+ and a variety of other DLP/SLA printers. Currently the DWS X-Fab is tempting me with it's sexiness. As much as I love the Zortrax, I print a lot of stuff that demands high resolution. While our 3510 is great at that, it's very expensive to run and as you noted in your post, 3D Systems customer service is terrible. I truly can't believe how horrible it is after spending as much as we did on that machine! That's for another post though.
I went through a similar process before buying the Zortrax. Once I figured out all of it's nuances it has been great, or should I say they have been great. I liked it so much, I bought another one. Actually, one is owned by work the other by me. The hardest thing for me was warping and splitting. After a trip here to the forums, that was solved. I keep both printers running almost all the time.
I will say this, while the heat up time may seem long, it's nothing compared to our other printer. As I mentioned above, I also run a Projet 3510 HD Plus and I've had to wait 3 hours before a print started. If you keep it running nonstop, you're still waiting 30 minutes but if it sits for a day or too, get ready to wait!
The main reason I want it to heat up faster is crashes. On both of my M200's, they will occasionally crash while heating. So instead of starting a print and walking away, I have to stand buy it and wait for the print to start to make sure it doesn't freeze up while heating. I'm pretty sure it only happens while heating the bed and probably only about 5-10% of the time it freezes. It will build my confidence and then trick me!
This just happened Thursday night. As I was leaving work I started a 11 hour print. Anxious to start the weekend I started the print and left. It hadn't frozen all week on heating so I didn't even think about it. I came inFriday morning to see it stuck at 74% heating the bed. No like.