At-least in my experience, OVH was the only hosting company where their network engineers spoke to me when we had a ddos problem.
Had a situation where one of my servers were getting ddosed we tried multiple providers both cloud and dedicated, but the attack was not getting stopped by anyone, the customer service was useless on most other places its either we get null routed, or hours of back and forth with customer service without any solution.
We moved our servers to OVH the customer service rep directed us to an engineer within a few minutes. I remember we had to send a few packet captures during an attack to one of their network engineers and, not only did they block the attack in a few hours, the engineer in charge explained exactly what happened was such a nice learning experience, that one interaction with them will always make me recommend them.
