I would not advise using BE for gaming as they appeal to heavy downloaders and apparently suffer from regular ping spikes as the network creaks in various locations at various times.
Something every ISP suffers from
Even during the current BE Linx problems, it rarely been a problem for gaming - it's been mostly download / throughput that has suffered for me. Will admit this hasn't been the case for all
It can be hit and miss with BE, that's true of any other ISP and at least with BE there is the option of a 3 month contract. Long enough to try out and go elsewhere if issues. I would always advise against BE Landline
I'd say that where fibre is available, go for it other wise BE is a good 2nd choice
No bias, just personal experience
Be* Unlimited