I've owned both a Torii Mk IV and an SE34i.2+, along with their CSP3 preamp. All fine pieces and sounded great, none "giant killers", whatever that means. The closest to a keeper was the Torii, which I spent a year comparing to the Atma-Sphere M60s. I kept the Atmas.
Decware has been around a long time and Steve is a very competent amp designer and an even better amp marketer. They've always had a very fervent following and then were discovered by the media during Covid. Wait list to get a new one now is over 3 years.