Not sure on the quality but DP said that he's a seen a couple and the build quality seems to be OK.
However, he did say to be aware that they are designed to be fitted right back against the wall ie. they don't allow for pipes, plumbing, cables etc to run behind them the way 'normal' fitted kitchens do
Saw it and, whilst I still like it and in the right home think it'd be lovely, I'm not sure it's the best use of space for us. If I were skint and had to rip out a really vile kitchen but money was tight, I'd go for it as can sell it on. Or if I had a French holiday home with stone floors/quarry tiled floors, I'd have one.
I'm really interested in the stainless steel double sink bit - we really want a big "wet area" and this looks perfect for us. But I would mount it on a different cabinet because I want the units to go down to the floor.