With
IBB DSL for 4 months now. Working great.
Total Cost is 52 a month with VAT for their 3MPS DSL.
I get dedicated 2.5mbps downloads and truly unlimited. I have not got more than 2.5 (but I think that's the eircom line limitation) I would consider going for the 2bmps since you will get full 2mbps. I 've had no contention issues (i.e. line slowing down due to multiple users). I truly have dl +-30 - 60 GB per months - no problems.
How do I know that I get 2.5mbps - I have used newsgroups and dl tons of stuff and it never dipped below 2.5mbps even running it for 3-4 days straight.
Only catch is 6 months contract - no issue for me though.