Have been with TT for 18 months now and have had no downtime and 10/11MB download speeds constantly.
I had DLink router supplied which kept dropping this was replaced with a Huawei, but have bought a Linksys WAG120N because TT weren't yet supplying N serires routers.
I assume that you have Exchange checked
Sam Knows that you will be full LLU with TT? I wouldn;t move if it is not their LLU kit - just mentioned because of the 6 week reference and no kit in exchange?