I've just switched from Quicken to MoneyDance. A few issues starting up -- used to Quicken's way, and so having some problems. Getting my head wrapped around it now, though.
Their forums are wonderful for getting help, and they have their own rep online in the forums to provide help. Pretty thorough and pretty fast response. I would certainly rate them highly for support. Worked out my most frustrating problems pretty quickly.
If you DO make the change, be sure to read on the forums the two-step method for importing your Quicken .qif file. Seems like it should be a one step process, but believe me, you will not regret having followed their instructions. And, don't let some posters give you the idea that you can't "One-Step Download". There is a way and it works just fine. Has to do with encrypting your file after you set up your online accounts. Check the forums and let that help you make your decision.