I just changed from Bell satellite to Fibe and its a easy processes , the only thing thought is if the existing receivers are not yours they will send pre-paid boxes for you to ship your receivers by purulator ( this in Quebec ) or they will charge you ( i know this because at FIBETV they didn't know that the receivers that i had were mine ) . The technician when it came only took the old modem and brought a new one ( Cellpipe 7130 , N not G like the white ones ) .
The quality in SD is exactly the same in HD i found some channels to be better not all but some and no loss of signal .
The interface is IMO way better than the existing Bell satellite , the search function also much better .
On the internet side everything works great i was with FIBE16 and i have the same download speed when i have 3 tv`s working ( around 14 mbps but a higher upload 2.73 ) with no receivers working i`m on the 24 and the upload on the 4.50 . In order to have FIBE TV to work they will give you FIBE 25 , but they only charge you FIBE 7 there's no FIBE6 . I asked the technician why bell doesn't have a higher bandwidth compared to there competitors in cable and he told me the in the near future they will have a 50mbps service .
For me it was the best change till now lets wait for the first bill .