This place is beautiful.
The space is relatively small but every inch is well utilised. Top quality, thoughtful touches, very cozy, warm (underfloor heating I believe), a lovely area, and Peter and his partner are very friendly. I could not recommend this enough, it will exceed any expectations you have.
If you're thinking it can't be that great, it's a boat, you will be pleasantly surprised. It's a very comfortable space and high quality. Very comfortable bed, warm, good kitchen area with decent basics like tea and coffee (no cheap and nasty coffee here, it's all quality), fantastic shower. Both the wheel house seating area and the spot on the top of the boat outside were also nice touches for a morning coffee or evening drink before heading out.
We didn't see a lot of Peter or his partner, just a brief check in and check out, but they are both very smiley and friendly and made us feel very welcome, you can tell they're care that you have an enjoyable stay.
The only foreseeable downside is it's a bit of a walk from the central tourist area, maybe 15-20 mins though I believe you can jump on the bus from round the corner. There's everything you need nearby though and the walk in is pleasant so for us this wasn't an issue and we were extremely pleased we'd booked here rather than anywhere else.