does it break easier,is it harder to do tricks or what?

less surface area, curves up more so its easier to do flick tricks, but less place to catch it. All about personal prefrence though. Its not like a huge concave will stop you from doing tricks.

Yes, what djkells said. Also, it can be really hard to get used to a deck with a super deep concave. If you are looking for a new deck, go Zero. They got a nice mellow concave.

^you say they got nice mellow concave. I say theyre almost falt. go for what you feel not for what people say

it doesn't matter or how deep or flat it is.
whatever's comfortable for you will be fine.

It becomes a ]

Too much concave=major over flippage but if you can catch your tricks no prob.