I stayed at the "Ally Pally" for 10 nights in November, and despite the length of my trip, don't really have all that much to say about it.
The hotel is fairly large and anonymous and despite its status as one of Abu Dhabi’s cheaper hotels, it certainly doesn’t come cheap at considerably more than £100 per night for a basic ensuite double room.
The room itself was a little dingy, and a musty smell pervaded the room (in fact, the entire hotel…), that A/C couldn’t kill off. It was, however, quite clean, despite the mystifying smell.
The staff (whom, in true UAE fashion, were all of course imported from Africa and Asia) weren't particularly friendly or helpful, and insisted on holding my passport until the entire bill was paid (I was paying via installments due to my travel agent back home not ordering in enough AED currency for me to take in cash, so I had to draw funds from my bank account in UAE, which were of course limited to £200 per day. Staff were not very happy about this, nor particularly understanding.)
As far as location goes, it's pretty good (situated pretty much on the impressive corniche), yet since Abu Dhabi is NOT a pedestrian city, the location ultimately didn't matter very much, as local taxis were abundant and extremely cheap. It is within walking distance of the relatively few bars that Abu Dhabi has on offer, and even has its own pub onsite (which was avoided, as it has a local reputation for providing some of the seedier 'services' one encounters in UAE).
All in all, few memories remain of this trip and hotel stay, and those that do are unfortunately mostly negative.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC