Has anyone tried this nipple shield by pigeon? Is it good?

Considered purchasing it (my imperfectly-shaped right nipple was getting wounds from incorrect latching) but tried to give nipple cream a go first, as well as working on the latch trying different techniques: https://www.youtube.com/watch?v=XfEV2oLRQy4 Fortunately this worked for me and didn't have to get nipple shield.