Some positives - centrally located in the town of Cambridge with nice location on the River Cam. Charming old building, reasonably well renovated. Bedroom was adequate.
Small negatives - no air conditioning (typical in UK and weather was ok, so not an issue); toilet never flushed properly. And better not forget to turn in your key-card at check-out - they charge you pounds 3.50 for this piece of plastic.
Big negatives - wi-fi never worked and staff attitude about this problem was terrible. Details follow... Attempted repeatedly to access the advertised 'free wi-fi in all rooms'. Was never able to connect in my room despite repeated attempts with two different computers. Was finally able to connect sometimes by perching on a sofa in the reception area. But even that was slow and intermittent. My business colleague was never able to connect anywhere in the hotel and I noticed several other guests running their laptops in the common areas, presumably because their in-room wi-fi wasn't working either. Staff response to this problem was abysmal. First was "nothing we can do, IT support is only 9-5'. Then "we'll try to reset the router", which didn't help. Third response was "it's because you're in the Coach House, not the main building" (I'd asked to be moved to the main building, was told no rooms available, then a hour later observed a walk-in being offered a room in the main building!) I wasted hours of my time trying to connect, missed several key business emails, lost hours of work time. At check-out, I requested a courtesy discount because the advertised free wi-fi never worked. The reception staff's response was quite incredible: "since the wi-fi is free, we can't give you any discount". (On that logic, you'd have to wonder about the free breakfast as well.) When I told staff I would write a TripAdvisor review, they said "oh, no need to do that, you should write a letter to the manager".
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.