The major pain point of responsive testing is viewing your website in different mobile, tablet & desktop view ports and comparing them. The sync scroll feature of LT Browser has helped us to deal with that by providing a side by side comparison with where every interaction in one device gets mirrored. The screenshot capturing is a bit laggy sometimes but they seem to be improvising the performance with every new update. Also the bug tracking feature comes in handy for us especially during this pandemic when everyone is working remotely. Kudos to you guys. Keep improvising!