I've never tried his sounds before, but I'm definitely going to load this one soon. Nice of him to share his set. I'm not a big fan of massive packages that take up the whole memory for just one instrument.
Did you try out the Pianos? Are they all ambient pianos? Generally these type of sounds are more appropriate with low tempo and large note value type of performance. I wonder how the effect built up will sound with a faster tempo.
Why would you want to use an ambient piano sound at a higher tempo? Thats not where they are suited for..
But the whole 2x64 sounds are very diverse, some choirs aand orchestralls are there. I alos like the guitars and the edm and trance synth sounds... all in all very usefull and it adds in those areas where the standard pa4x sounds leave room for improvement, or in many cases, there is small areas not covered..
The whole package adds a different tonation of sound sto the pa4x