When I bought my Form 1+, I never bought it as a tool for technical models that require utmost accuracy, and I had, I would have been disappointed as the models were never 100% accurate. Even today, my current Form 1+ still has some issues printing very accurate models, it always stretch the prints front to back, and my current setup, is pretty weird (I’ll post more details later when I get home).
I print primarily what you described as artistic models, miniatures or articulated figures, mechs, etc. Almost all my models end up being painted, so I developed my own techniques (or trial and error 
) to make sure that interlocking parts fit together. If you are interested in seeing some of the type of work I’ve done, you can look here:
As for the other points you brought up, it’s a little early to tell how long the tank will last or maintenance, as I’ve only had the printer for exactly 1 week.
The tank is made of some sort of heavy nylon type plastic, and has a FEP film on it. Knowing how FEP is supposed to be pretty forgiving in terms of UV wear, I would think it should last quite a while, assuming it doesn’t get physically damaged.
Resin changes seem to be simple enough, pour whatever resin is still in the tank out, then pour in the new resin. When I changed from the original Monoprice Clear to the ApplyLabWorks, I just scraped off as much of the clear as I could, cleaned the sides of the tank, and poured in the ALW Grey. Used a credit card to scrape the bottom of the tank, and mix the resin a little, that was that.
Last but no least, size. As I previously said, this has a pretty small volume, 120x68x150, about half that of the Form 1+. But that’s good enough for the type of small prints I will be doing.
Speaking of prints, last night I set up another print and this morning it was done. This particular one is another Warhammer 40K Sisters of silence print, Saint Celestine. The model was split in 4 parts so it pretty much took up the entire print platform.
Here is the model as it came of the print bed (still wet), and later today, I’ll post some shots of the assembled print.
