Started out well....
We checked in for a 5 night stay and had a decent room overlooking Hyde Park - room was clean. The location of the hotel was great - after breakfast each morning we for a walk through the park, and the Tube was only a couple of blocks away.
HOWEVER, on the 3rd night, our opinion changed significantly. We acquired next door neighbors who woke us numerous times throughout the night. Even after letting two hours go by (at 1AM needless to say!) and turning on the TV to mask their revelry, we were obviously not going to sleep. Phone call to the front desk - "We'll call them and ask them to quiet down." - Half-hour later, another phone call - "we'll call them again." - Another half-hour later (by now it was almost 4AM) my husband finally went down to the front desk, and personally escorted the clerk to the next door. Finally some sleep! The next night was a repeat of the same - finally WE moved to another room, that was smaller, dirty, and literally falling apart - oh, and overlooking the dumpsters in the alleyway! A complaint letter was sent to both the hotel and Virgin Vacations with no response.
After exploring London for several days, I urge travelers to look elsewhere - this particular hotel in the Thistle chain is NOT recommended!