In my experience the system is almost completely transparent if you are used to a non-linked system. I notice that the bike just kinda squats down and throws out the anchor when you grab either brake and there is less noticeable forward dive. There's a delay/proportioning valve between the rear pedal and the front brakes so even in delicate situations where you don't want to use the front, I can still dab the rear as though it were a non-linked system.
The biggest advantage is that if you panic and stab just the rear brake (usually a reaction of less experienced riders) instead of getting and instant lock up and a long slide, you also get some front brake that helps to slow the bike a lot better than a rear brake stab alone.
I like the linked system for trail braking. If you get into a corner too hot, particularly a hard right turn where you can't get to the brake pedal, you can use a little trail braking from the front lever and the bike feels a lot more settled and less likely to stand up than using a front brake alone. Combined with ABS, it's a pretty good and forgiving system.