I have tried sauce lab along with Appium. I have used this to Test ios and android Application using automation Testing with different environment. Really happy continue testing with saucelab

Right now I m using free version as we are still on our experiment base. Later planned to upgrade subscription.

Pros: - Automated Cross-Browser Testing - Get results faster - Many platforms, OS, simulators options. - Good documentation and troubleshooting. - Supports mobile version of android and ios. - For mobile it save the budget to test around the different version of mobile OS.