We booked the apartment to do the Gromit Unleashed Trail with our 3-year-old daughter. We were met upon arrival and given a brief tour of the apartment, which was clean, bright and very well equipped, although most of the cutting knives had rust spots, where they'd been taken from the dishwasher without being wiped. I contacted the rep, who thanked me for alerting him to the problem and said it would be dealt with.
Both bedrooms (one with en suite bathroom) were spacious, with views of the river. However, we felt the living space (open plan kitchen/lounge/diner) was a little cramped, particularly for an inquisitive 3-year-old. That said, as we weren't in the apartment all day, it wasn't a major issue.
The apartment was ideally situated for our needs and there was even a Tesco Express a few minutes walk away.
The only reason we haven't given the apartment an 'Excellent' rating throughout is due to the aforementioned issues.
All that said, we would probably return and will certainly recommend it to any of our friends who don't have children.