I've tried another candle company that does refills (Siblings) because I avoid single-use items and some candles come in vessels that are just too gorgeous to let go of. They were great, but you still had to do some melting/microwaving/hot wax handling and that's not ideal.
This is not that. You literally unwrap it and PLOP back into the ceramic vessel the original candle was in. Badabing badaboom, you've got a brand new fancy candle again. It burns identically to the original as well. Easy!