Best advice home roll on wax kit for efficiency?

I’d like to buy a roll on wax kit so I can wax my legs and under arms - and it not take me forever to do it using a stick- ideally I want to use Gigi wax so I’d like to be able to refill with that but the Gigi roll on kit has pretty bad reviews.

Do you have any suggestions that you’ve used for awhile and worked well?

Any wax preference ? Any tips?

I feel like this could be a good addition to the sub! I tried searching for similar things but didn’t find much.