I wish I could love this for what it was made for. I love massages, I love warm things, it's a heart, and it's adorable. However I can't. It has two main problems that I have found.

One, it has poorly cut edges so it has semi-sharp plastic ridging that I get nicked with.

Two, it gets slimy icky with massage oil. It doesn't glide well on its own and with massage oil the feeling is like grabbing a fish out of water, very weird and I don't like it.

However, on to its good points. It is reusable, exceptionally easy to return to its original state, just put it in a full pan of boiling water for ten minutes. You don't even really need to watch it if you have a full pot that is big enough that it doesn't touch the edges (I've never seen a full pot of water boil out in ten minutes). I don't know if you could call it eco-friendly, but it is less wasteful not throwing away hand warmers after one use. It is warm, I have terrible circulation and am always getting yelled/glared at for putting my unreasonably cold hands and feet on my boyfriend. This is just as warm as he is and it doesn't argue.

Overall it depends on what you’re after. I got this in a gift bag at a lap dance/tickle his pickle class/party so it was the perfect novelty for the event. If you are looking for something for heat massages you’re honestly better off getting something better. And if you just want reusable chemical reaction heat this is great, instead of going through disposable pocket warmers every day at work I just bring this and it works the same, just less waste. So depending on your needs this may or may not be what you're looking for.