I need help! I've decided that I'm paying to much for my bradband and terlephone service with my current provider. So I've reluctently cancelled my contract even though they've always been fantastic with me

Now I'm wondering if I've made a big mistake.
I was wanting to move to Tiscali because a friend of mine is with them and says they're good but on the internet I'm finding bad reviews.
Now I don't know who to believe

Can anyone help?