well there's a downside and upside on both side to be honest, but well i prefer pc all over since the features is way lots than the mobile version, can't even do actions or change clothing while in room with mobile, and it's just weird how pc use ids as a name and mobile as a nickname. you wouldn't notice the "guest" name in Mobile at all, which make the one that already pay for name change kinda feel disapointed.
for mobile version, really love how u can pay stuff with appstores fund, makes it easy for me to buy credits and all. also the surveys really easy to do on mobile. (yes i only use mobile for earning credits)