I have used them all, and the easiest to set-up was the G70 closely followed by the SD1. the PA1xpro was more involved but it sounds great. the T1 and T2 are more of a gimmick harmonizer and not a professional grade at all. Trust me I would like to say differently but fact is fact, play them all and you will agree, the T2 sounds very robotic, thin, and un natural.
If by some means you have figured out a setting that sounds good, please send it to me and I will be the first to apologize for my rant, but I am very confident that it will be a long time before this actually happens.
No I am not selling the T2, but if Ketron comes up with a SD1plus replacement I am there, sight un seen.
Seriously send me the file