Seems I did the same as yourself only 3 months earlier.
But sorry to say I only got to spend about 2hrs at the PHOF and in that time was really unable to enjoy the games as much as I wished to as was playing far to many games as I just wanted to get as much as I could in.
In referance to the games in the Riviera did you play them at all? I walked past them but did not get to have a game what was there condition like? There are also a few in Circus Circus but they needed looking after so also did not play them.