I don't have experience with one so I'll share thoughts -
My wife and I have looked at a lot of campers - showrooms, couple of overland expos, people we meet on the road, etc.
And the V1's we've seen and been in have always impressed us and we'd love to try one out. Aesthetically they're marvelous and a nice place to spend some relaxation time. The company seems like it's trying to produce a top quality product and be innovative.
It does seem, however, that they go up for sale soon after purchase a fair bit, after folks have invested well over $100k into their new rigs and then taken them out a few times. I find that interesting - perhaps life with a very expensive soft sided popup camper is not what most people imagine. I'm thinking comfort wise.
Lack of insulation, both temperature and sound, possible condensation and mold issues, no A/C - these things would probably bother me at this price point. Having spent a year full time in a hard sided truck camper (Bigfoot), and thoroughly enjoyed it, I'd hate to spend a bunch more $ and downgrade my overall comfort level.
Just throwing thoughts out - they seem like an amazing rig for the right people and the right conditions, who have fully thought through the possible drawbacks of soft side campers and aren't going to be surprised by life with them.