I know this thread is ...like... pre-pandemic... but I got a Flair earlier this year and I don't know why I didn't get one sooner. They are really fun and when you do your part (like, invest in a GOOD grinder) the 'spro from them is tremendous!
I picked one up about a year ago. I enjoyed the espresso from it at times. It was pretty hard to be consistent though so if getting clear insight into the coffee is a necessity it comes up short. Could futz around with each shot though so that was fun. I did not enjoy the workflow at all.
They now have a powered model that I would demo if considering one again as the preheating/temp management/ etc at was a pretty big hassle. A boiler lever is much easier.
I am holding onto it though. Probably because I'm a hoarder as we moved to a simple Moka pot and its in mothballs.