Acanac DSL will give you the same max speeds as Start DSL or Teksavvy DSL or Velcom DSL. Depends on your modem (tip: don't buy TP-Link modems, recently they started using inferior components in ALL of their models), phone cord, inside wiring (if you have 10 working jacks, there's a good chance you'll be getting intermittent connectivity lol) and Bell infrastructure in the area as all of it will use Bell copper for the last mile. Same goes with cable and Rogers/Cogeco/Videotron infra in your area.
I'm with Velcom and they have been pretty stable so far with only 2 outages that I detected on their end in the past 2.5yrs (not counting Bell-related losses of sync and my equipment crapping out). For one of those outages I waited for almost 6 hours on hold and when I got somebody they took me through the equipment troubleshooting paces even though they knew their LNS went down; later on I found out it was all over the forums.
Cable infrastructure is less dependent on stuff on your end, but when it goes down, it typically affects huge numbers of subscribers and lasts pretty long. Also, I found Bell techs/contractors to be more professional about doing installs/repairs than Rogers techs/contractors. For a failed Rogers install you typically have to wait 4-7 days (now it's longer because of the backlog they are experiencing) until somebody else comes in and hopefully does their job.
General facts:
-Almost all DSL in ON/QC goes over Bell copper (so if your dsl is crap with Velcom, it will be crappy with Teksavvy)
-Almost all cable in ON/QC goes over Rogers/Cogeco/Videotron copper (so if your cable is crap with Start, it will be crappy with Acanac)
-To get optimum performance out of DSL, make sure of the following:
1) That your inside wiring is up to snuff. The fewer jacks you have connected at your demarcation point (box where your inside wiring connects to the Bell service drop) the better. I am just running one jack and it has no phone service, directly wired with Cat 6 cabling (you can get identical performance out of Cat 5 or Cat 5e), also use quality jacks (I love quality keystone jacks)
2) That you are using a good modem. Don't buy a TP-Link. If you have an 8840 that is more than 3 years old or an 8950 or an 8960, they will work fine as long as they are in good shape. If you have an 8616, 8816, 8951, 8961 or any other model, use them as paperweights. A good cheap ADSL2+ modem is D-Link DSL-520b that Canada Computers has on sale for $27 (typically $35-40). GET IT!!! For VDSL (15/10, 25/10, 50/10 DSL plans), you will have to pay $100-130 and generally it's better to buy from your ISP.
3) If a Bell repair ticket is opened by your ISP and the problem turns out to be with your inside wiring, modem, computer or phone cord, you will be paying a Bell diagnostic maintenance charge in the $100 ballpark for sending a Bell tech out for nothing. If the problem is with Bell infrastructure including the drop to your residence, the repair is free.
4) Your wireless performance is not your ISP's problem. It's on radio frequencies and can be affected by other wireless networks in your area, power lines, your appliances, cordless phones..... If you're planning on repainting, that's a good time to run Ethernet everywhere.
5) If you have an active phone line and a DSL line make sure all your phones/faxes go through a filter and any DECT 6.0 bases have to go through 2 filters (they can be had for $3 a pop)
