The kicker is perfect, though it's plastic it's closed off on the bottom so its not nearly as loud as it should be. The incline is really good for doing flip tricks off and there's plenty of space is to flip a trick on the obstacle. The quarter is wayyy longer than I originally thought, which is a plus. I wish there was a better coping, preferable metal or at least a slicker plastic, but it doesn't get in the way and does slide/grind fine. The transition is a bit bumpy, as there's lines where curves are but it does work fine and seems to be at a good angle for tricks. Both obstacles came with great nonsliders on the bottom and in my opinion are worth the 30 for both. If you need to pick just one, personally I think the kicker is the bees knees.