Hi Klaus,
First let me start on the “negative” points; The first time around they forgot to pack the remote so I had to wait 3-4 days until I received it before I could be able to program the roller shades. And the second time I ordered from them, they sent the wrong brackets so I couldn?t install anything for another 3-4 days until they shipped the right brackets.
For many people, waiting an extra 3-4 days is not a big deal and I must say that the guy at Rollertrol did his best to fix their errors quickly therefore I wouldn’t call my experience a bad experience. I have not totally given up on them 
For my first experience, I bought everything from Rollertrol (the tubular-motor (RF), the remote-control, and the fabric (tarp) on a roll) But the second time, after I realized how “relatively” easy it was to install everything, I only bought the tubular RF motors from Rollertrol and I bought the fabric (on a roll) at a local store near my home.
For me, the stressful portion was making sure I measured the inside of my window frame as accurately as possible because there is a little bit of margin to play with but not that much. The main point for you to know is the exact dimension of your window frame, whether you want to install the tube inside the window frame or above the window, and whether you want to fabric to roll on the window side or the room side (if that?s important for you)
I have purchased only the roller-shades so I have no experience with draperies (yet). And as usual with z-waves devices, the instructions are often obscure and difficult to understand for a newbie (but this has nothing to do with Rollertrol). So you have to be resourceful and read a lot of different threads in different forums. In my case, nothing came with any kind of printed instructions whatsoever, they ask you to read the instructions on the website which was Ok fo me.
You will also need to buy their RFXCOM box and plug it into a free USB port on your vera (do you have a free USB port?). My understanding of this device is that vera does not communicate to tubular-motor directly… In short, your vera communicates to your RFXCOM box, and this box communicates to your remote-control (which communicates to your tubular motor)
Also know that one remote can control many tubular-motors (I think 10 if I recall?) and of course also the RFXCOM box can control many devices, so you will only need to buy 1 RFXCOM box and possibly buy only one 1 remote-control.
Good luck with your project
Claude