I have been using fibrelink for past 4 months now. Overall its a lot cheaper and better than PTCL. The problem is with consistency. It disconnects almost every other day for lime 5 times a day. Duration can vary from a couple of minutes to like hour or two. There are quite a few ping breaks every now and then. I hope they are working on the fix for these. Overall their service is getting better.
If you can live with that for now, its a really good option.