The Nov promo went on a life of its own (timing was perfect as Wind dropped the ball and had alienated alot of their long term client base with LTE debacle)
But we also saw a few major issues we never saw before (and you can also see a huge spike in wireless code complaints...) in addition to a huge spike in known issues
I think *now* the dust has settled things are running far smoother, but really do not think profits are up (to the contrary, since most clients are on promo plans now arpu is surely lower, and Koodo was also canabalised during the promo frenzy)
It got so bad that both Fido & Virgin actually price matched which says something for the promos crazy success
Oh and since they advertise word of mouth, I suspect most long term and new clients easily racked up more referals during this time than the years prior
@Luddite wrote:Although it does depend on what constitutes a big mistake. Perhaps PM has 10,000's more customers now even with the bugs.
@kav2001c wrote:Last summer there was a big debate as to whether to end the BETA or not
I was personally against it arguing things needed to be fixed first but the powers that be decided they would get more new clients and more revenue by dropping the BETA
Time has proven this was a huge mistake as there are so many issues that never got fixed
Although it does depend on what constitutes a big mistake. Perhaps PM has 10,000's more customers now even with the bugs. 
