I have owned my Sun Cat for one year. Now that I have been able to sail it awhile and get used to the the controls, it has become a joy to sail. When I first bought this boat, a used 2006, it had a few options installed. Lazy jacks, tiller tamer, ECT. I used the boat with these options initially. Then I decided to progressively remove them, too see if I would miss them. I don't think they are needed one bit. Now the boat is cleaner, simpler, more fun.
I find that when the sail is set correctly, there is a very balanced helm feel. If the helm pressure increases, something is usually set incorrectly. The rudder talks to you. With a tiller tamer on, you can not hear what the rudder is trying to say. A cleaner cockpit without the tamer lines too.
I'm really happy with the boat. I have very shallow water, so the center board is constantly being adjusted. She sails surprising well with the board partially deployed.