I'm using now a Tucows reseller via eNom.com. So far, it's good although it does not accept my preferred credit card; I had to resort to my debit card for payment (same operator, same issuer bank; go figure). Gandi did not have that kind of issues but then, a 300% price hike certainly made me run from them.
To add insult to injury they also killed the free mailboxes they used to bundle with domains as standard, so customers who used that feature had to start paying a huge premium for the domain itself and pay even more on top of that to retain access to their email.
And their mailbox offering is also overpriced. 5.99€/month (and it use to be pricier! they recently decreased the price) for 10Go and very basic email features. Fastmail is 5€ for 60Go, masked email, and a few other things (not in the EU tho).