Was pushed to this ISP when it took over my previous supplier, Onetel. Perhaps it has suffered indigestion thereafter, with the subsequent addition of other companies, but their admin has never been impressive.
The ADSL line is fairly reliable, although I was on a service capped at 2 megs for some time.
With the increasing use of streaming, for YouTube, Films etc., 2 meg became unacceptable and I paid more for their standard "Essentials".
Currently I receive downloads at 6/6.5 megs, which is just acceptable, and better than some people get in this rural area.
The likelihood of upgrade to fibre looks to be remote at present, but remains the most feasible means of improvement.