Welcome to Rebreather World. Plenty of good info for you here.
I've had a Vision for 18 months and it's worked perfectly.
I have tempstick (Inspiration only unit with one), ADV with flowstop, Nitrox and Trimix software.
If you want to travel a lot then the smaller Evolution might suit better? Are you diving locally or abroad or both?
You will need to add more weight to an Evolution for diving compared to Inspiraton Vision so you will have the sme amount of weight on your back when you jump in the water.
I have 2 x O2 cylinders and 2 x diluent and this really helps with cutting down on the number of visits to my local dive centre for filling especially as I always use trimix.
It also means I'm not under pressure with always having to make sure I have my cylinders full before a trip.
I can go on a 3 day dive trip with one days diving left in my 1st set of cylinders with the other two days taken care of by my two spare cylinders.
The joy of not having to drag a twinset and two side cylinders off a divebaot each day is wonderful! I might stroll off carrying a "very heavy" 3L cylinder.Enjoy winding up your OC dive friends by pretending your cylinder is really heavy.
With only 2L cylinders with the Evolution, good to have a separate drysuit inflation cylinder say ali 1.5L then you have the wing off your diluent.
I am assuming drysuit diving in Europe?
Charlie