We used CrossBrowserTesting but there were stability issues.

My company has not used any tools that are very similar to LambdaTest, but we use Kubernetes and manage the clusters with Azure.

We previously used Sauce Labs.

We previously used Sauce Labs, and we switched for better pricing.

We did not use another solution prior to this one.

We used Virtual Machines prior to LambdaTest. That infrastructure was extremely costly to scale for our ever-increasing variety of browsers. It was also consuming a lot of our DevOps hours.

We evaluated Sauce Labs and we chose LambdaTest because it was an affordable product with a good feature set. 

Yes, I did use BrowserStack for few months, but it was too costly, and also we are not happy with its kind of performance, so we are looking for an alternative.

We did not use another similar testing solution prior to LambdaTest.