If you have to ask, then I would advise against it. It's a fairly advanced level trinket, especially for a relatively undergeared tank. Stick with bad juju and shado-pan.
It's good: you'll probably want to make crit your highest stat (which it should be anyway really), which means every so often you'll lose all your haste and mastery. As such, it's a good idea to try to bank Shuffle uptime (and keep 2 Chi spare for Guard) so you can deal with the lesser haste, and be aware of losing your mastery which means you'll take a bit more spike damage.