I've used it for about 5 years now, I used to think it was great, but over the last 3 seasons it's been a bit of a waste of money to be honest - primetime games are too late for me to stay up for generally, and any game that gets shown on Sky Sports is blacked out live, I think last year that was about 4 maybe even 5 games - couple that with the primetime matches and last year I hardly saw any of the first 10 matches or so, and as such lost quite a bit of interest in the second half of the season.
Furthermore, the playoffs have been blacked out in every year prior to this year (where I understand they'll no longer be) - had they been blacked out again this year I'd probably have quit paying for it.
Just my opinion on it of course - I begrudge paying the extra money on sky sports/now tv just to watch 3-4 games a year.