After spending years manually testing websites on different devices, I was pleasantly surprised at the speed and ease with which I can set up a test, identify issues, and log them. I'd have to say my favorite part of the platform is the real-time test (though I haven't played around with the batch testing options too much yet). I thoroughly recommend you give this service a try!
Can't think of anything at the moment. The presentation is slick, the tool is excellent, and the team behind it have been incredibly responsive and helpful.
If you're on the fence or have a short-term project, grab their $15 ten-day pass. It has no restrictions (other than the time limit). You'll probably want to get a monthly/yearly plan after using it for a few days though!
I'm mainly using LambdaTest to identify stylistic and code issues on the landing pages and sites I'm in the process of designing. In that regard, it's saved me (and my clients, by extension) countless hours in manually testing across different platforms.
More specifically, I used it last week to identify and resolve a number of issues on older iOS devices that were causing me a major headache, as I didn't own a device with the iOS version where the bugs were appearing. LambdaTest made it wonderfully easy to pull up an older device, inspect the log, and find out exactly where the error came from.