I'm definitely going Japanese style for my next bath, I'm just going to buy it pre-made instead of throwing countless thousands into a hole in the ground.
My sister went for Omnitub when she was fitting her bathroom. They're very pleased with it. Presume fairly straightforward to install as they did the bathroom themselves.
I was just looking at their website funnily enough! I'd plan on fitting it myself I think.
Have they got a tank to fill it with?
Only issue for me with Omnitub is they only seem to come in white, which is fine if you want white. Cabuchon can make them in any colour (but I suspect are pricier).
My sister went for Omnitub when she was fitting her bathroom. They're very pleased with it. Presume fairly straightforward to install as they did the bathroom themselves.
https://www.omnitub.co.uk/