If you have not used guitar to MIDI before, do not expect it to magically convert everything you play perfectly.
In a way it is like playing another instrument because you have to play very precise and limit how fast you play.
The FTP is better than the Roland GK-20, but only slightly better or maybe even the same as Jam Origin.
Jam Origin has no hardware... it uses the PC to do the conversion on the normal pickup signal.
If I were you, I would download the Jam Origin demo before you spend $400 on FTP.
Jam Origin will give you a feel for guitar to MIDI since its tracking and conversion is about the same as FTP.
If you like it, I think the licensed Jam Origin is $100.
Since FTP is hardware based you cannot demo it. You also need to get extra mounting kits for the pickup and controller if you want to use it on different guitars.
Not much to say about using FTP with Sonar.
Sampletank and Kontakt Player come with the FTP though not the full versions. Also has some basic notation software.
These can be used with Sonar just like any other Synth. You canuse it as a standalone program or as a VST. The VST was a little crash prone so I use it standalone.
The FTP's MIDI can control any Sonar synth. Same with Jam Origin.
If you want to mix the normal guitar signal with synths being controlled by FTP, you need to use a std guitar cable and insrt this into Sonar via your audio interface. I found this odd because the MIDI part of FTP is wireless.
I have the FTP on a Jackson DK-2S which also has a Sustainiac magnetic sustainer factory installed. If you have not looked into the Sustainiac, google it. It is very cool.
THe FTP works about the same on a Les Paul , Ibanez RG or Strat.
I waited like 2 yrs for Fishman to finally come out with the FTP. THere was a lot of hype in the that time. Designed by the guy that made the Axion and so forth. When I finally got it, to tell you the truth I was a little disappointed. It all depends on what you want it for.
If you want some string or horn parts, great. I use it to play bass parts on guitar or maybe the occasional sax part. You are not going to shred flat out with it, though.
Ask me specifics if you want to know more.