I have been working with them as a part time field service technician and never faced any issue with the payment, communication or any other stuffs.
Office employees are always very helpful and easy to communicate.
Lots of work, so many opportunity to earn more if you are ready to put effort than it's a very good place to earn more..
Cons
I hard some bad reviews even in Glassdoor but my friend told me not to mind these reviews and better check it yourself, so far I did not faced any hard situation over here.