I thought Golden Sun was good, but only that. I didn't have any problems with the puzzles, and the Djinn were fun to swap around, making fairly good custumazation options. The battles were not my type (I like ATP or real time battles more) and the failure to auto-target was annoying, but I still found it fun. My main gripe was it should have all been one game. Making two was a bad idea, in my opinion.

Anyway, back on topic, I see almost no connection between Golden Sun and Tales of Symphonia.