I purchased this last year through Premier Bidets, on the recommendation of a sales associate through email and on Reddit.
At the time, I was between waiting for the new TOTO series to release or buying the older model when it was suggested I look into this unit.
This is my 3rd bidet seat, first I started out with a basic two-nozzle unit that served me well for a couple years, but it started to fall apart and I decided to upgrade to a BioBidet that had heated water, light, and a "dry" function. That seat cracked and started deteriorating exactly 2 years after I installed it, so I was hoping for a more long-lasting unit with similar capabilities without spending thousands of dollars.
I have used my brother's Toto C100 several times through the years, and the only complaints I would have for that unit is its bulk and price. So I was intrigued by the soft spa, having only ever used fluidmaster products for replacing sink pieces and parts. A smaller unit with a competitive price was interesting. It not having much of a pedigree in the bidet community or many reviews made me hesitate but the promise of Premier Bidets to swap it out if I didn't find it suitable and the knowledge that the next gen TOTOs were coming out, it would be a suitable stop gap no matter what.
After almost a year, I can say that I'm very pleased with my purchase. The water nozzle is not quite as good at cleaning as the TOTO, but it is better than the BioBidet. The remote being detached is annoying, but I just mounted it on the cabinet next to the toilet so it's fine. The plastic piece that provides the locking mechanism of the seat onto the base cracked when I was adjusting the seat -- but they quickly sent a replacement plate no questions asked. The fan is still substandard for a true drying experience, and the carbon filter worries me because it doesn't seem to be replaceable. BUT, overall, I will keep using this device until it dies. I'm going to put the 5 year warranty to its test and see how it holds up.