BT has been our supplier for the MPLS infrastructure for a long time, and during our SD-WAN migration they have supported us quite well. BT as a company is reliable, trusted, and offers strong SLAs on their services. We are still in the middle of our SD-WAN migration project and we can trust BT to keep providing help and assistance. Above all, we value the account team that's been servicing us from Madrid with a more local approach. They have been able to restore the relationship in a time when this was thought to be impossible.

I don't think BT is any better or worse than other vendors in the space. But in general, I do find their service level and delivery falling behind and getting worse than 5 years ago.