I went to Mexico thinking this would be the worst of the 4 hotels we were due to stay in, and it ended up being the best by far. I've stayed in a couple of these in the UK and they've been awful but I loved it!
We arrived at 6.50am after an overnight bus expecting just to drop our bags but they had a room ready and let us check in for no extra charge which was excellent.
The room was HUGE! Two big double beds, sofa, desk area and the shower was probably the biggest I have ever been in, bigger than a double. There was also a safe, coffee percolator, aircon and mini balcony - none of which you will get in the UK version of an Express.
Rooms black out completely at night and the only noise transference was from noisy guests in the corridor. Great night's sleep.
Breakfast was good for a buffet though I have had better (they are a bit slow refilling the hot food when it's gone and it goes cold very quickly). That's pretty much the only fault I could find. You may perhaps want to be a bit nearer town but it's an easy and very safe 10-15min walk (this is obviously a middle class residential area) and a very easy walk to the 1st class bus station.
My biggest annoyance was probably the other guests - it caters to a lot of tour groups who all breakfast at the same time so you are sometimes forced out to the patio.
I'd definitely stay here again