Rooms at the Mabuhay are quite clean and staff are pretty nice and friendly. The breakfast buffet is reasonable. Price is quite ok. That's the good part.
My biggest peeve is that our room had no window of any sort and I had no warning that that might be the case from the hotel's website or the reservation staff I exchanged emails with. Some rooms do have windows, so it's not uniform, but we were told there was no other room to change to and it was something that just made the place feel uncomfortable (even though we likely wouldn't have had anything to look at, just some natural light would have been a big improvement).
Per above, neighborhood is a dump, with most of the immediate area occupied by love hotels. Not even a store of any sort really around. About 15-20 mins walk takes you to the new giganormous SM Mall of Asia, and beyond the traffic, it seems safe enough walking.
Beware that the seemingly free internet access in the lobby comes with a charge (reasonable though).
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.