I put the Truesight system on mine with the adapter that hooks right into the multi link coupler and runs through CEBIS.
It has worked great the last two years. Switched from the Claas setup to this when we went from 30" to 20" rows. The Truesight system works better than the Claas system did and everyone told me the narrow rows would be harder to steer.
I do believe it's quite a bit cheaper than the Claas system as well.
A neighbor has had to replace the whiskers on his Claas system several times and said they are quite spendy.
I actually have both systems right now each on its own header and in my opinion they both work great. Neither will take tight corners as already mentioned but if it's relatively straight it really makes for a much less stressful day behind the wheel. I'm not sure which is cheaper as the Claas system wasn't an option on the header.