Pros
Cheetah is a company that has huge potential. They've got a large presence in China, and right now a growing presence in the US. The company is dedicated to growing and developing their offering, and consistently allowing their employees to take charge and blaze their own trail. I don't know that I've ever been at a company where your suggestion or feedback is taken so seriously, and acted upon as quickly as it is here. Startup feel of autonomy and hard work paying off at a huge company with the finances to move quickly for you and their clients.
Cons
With the recent acquisition, there is a bit of confusion between the two companies - which is to be expected. Lot's going on with people moving quickly, which can make it tough if you're not sure about a process and need help -- However, everyone is very helpful when they have the time to carve out for you.