Warms up quickly and fits my pink flora wax cartridges perfectly. I wish it had a on/off switch though. You have to unplug it after reaching your desired temperature, or else it keeps getting hotter. That's a bit tricky to remember but I think for the price it's understandable.

I have tried out my new roller once so far, I left it in for 30 minutes and continued to check the temperature. It's not getting very warm so the wax is quite sticky and tacky instead of rolling on smoothly like other wax I've used for years. Convenient, but doesn't roll on nicely. I'll keep using it and trying different things for better application

It fit my dermwax cartridge perfectly but even after an hour of it being on and plugged in, the wax wasn’t anywhere near melted.