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Not yet, I've tried a few diff JB apps that caused some frequent respings. I have since uninstalled those and kept a precious few. Ones that I have ha no issues with so far are: SBSettings, Zephyr, barrel, MyWi 5.0. So far I haven't ha a single respring and my phone is better than ever!!
I have noticed that winter board def needs an update, but I don't really theme all that much.
Maybe install a couple of things at a time and test them out. Over in the hacks forums lots of ppl have said intelliscreen X is working fine for them. Maybe it was a fluke. If you have a 4S, I would JB and not install any tweaks. The reason I suggest that is bc this may be the only JB that will be available for the 4S for quite some time. Look at the iPad 2, been out for almost a year and only ha one JB available up until Friday.