Pretty interesting. Now, we have more choices.
The other day, I've found this project on Github called OpenSTF[1] which allows you to set up your own devices labs. It's pretty interesting and I've got to try yet.
Generally, I'd prefer to set up my own device labs rather than testing with 3rd party services. It depends on your target market. For us, the apps we made are target for the local market (people and devices). And the phones sold in our market are different with the phone sold in States and I don't expect to have some China devices to be available on 3rd party services.<p>[1] : <a href="https://openstf.github.io" rel="nofollow">https://openstf.github.io</a>