I use INWX. Prices are very cheap and their DNS supports most of the record-types available, which I didn‘t have at some of the registrars I was at before.

I think I will stop using Gandi. They are too expensive and don't provide much value compared to other registrars.

The price for the TLD of my custom domain doubled. With the new prices, it's cheaper for me to get the domain at OVH (cheaper than Gandi's previous price) and mailboxes at mailbox.org, than the domain alone at Gandi.