I have still GS LC 2013 which is put on sale, put 12kmls on it, good bike but got fed up with clunky gearbox and commuting to work on 240kg bike in London traffic isn't fun. Tracer on the other hand is light ( 210kg with fuel), nimble when filtering through traffic and engine sound is much nicer than boxer's. I'm thinking of putting akrapovic full system soon, as stock exhaust is too quiet.
What I don't like - stock seat is rather firm, but I managed to do 250-300mls days on it and even chaps on their 1190 KTM and Super10 where moaning about their backsides. Stock tyres do not give you much confidence, especially on wet, so I wore them off in Spain and put PR4s in front and back now. Original screen is on small side, so I put aftermarket one which looks nicer and gives you better wind protection.
It is small bike, so riding 2 up might be a problem, but if you riding/touring on your own, bike will be perfect. At this point in time I can't find the bit that I don't like it that would start to annoy me and think of swapping it for something else.
Engine - is superb. Especially on 2nd and 3rd gear...it pulls and pulls. Most of mountain passes I only used these 2 gears.