27,000 likes on their facebook page is hard to delete negative feedback!
I won't comment on the UnlimitedInternet service as I have no personal experience. But agree with @sbiddle on the 27,000 likes comments.
A Like on Facebook doesn't mean anything. How many of those 27,000 people liking the page you'd expect to be a customer? Did they ever ran a competition where people had to Like to be in to win? That would skew the numbers straight away - and I am not saying they did, but I am asking if anyone knows.