I found this discussion interesting and perhaps I can offer a slightly different perspective than most. While I never rode either the ST, FJR, Kawi or RT I was considering them all- in that order. The FJR popped up, it's super clean, low miles etc so I jumped on it because the consensus seems to be they're excellent bikes that handle very well and have a lot of power.
Needless to say I had high hopes when I picked up my pristine condition '05 FJR with only 10k miles on it. However, unfortunately, right off the bat I noticed things that were disappointing. Keep in mind that my only frame of reference is my 09 Ninja 650R (parallel twin engine) that I was hoping to replace with the FJR. I noticed the FJR vibrates way more especially when the RPMs are 3k plus, the throttle acts funny not precise, the ride feels as if you're on a galloping horse- and overall just not very refined for a $15k bike. None of which I ever noticed on my $9k Ninja and as a result I took all those things for granted- until I rode the FJR. Perhaps I got a bad one or perhaps the Gen2s are better and more refined but I haven't been very impressed with mine. As much as I want to like the FJR and as I continue to play with the CO settings, suspension settings, tire pressures etc I'm turned off by having that bad first impression and I'm often finding myself thinking about selling it. Whenever I read people raving about their FJR I can't help but think I got a Fri afternoon special...afterall it only has 10k miles.