I will give you my experience with WIND. Take it for what it's worth. My main purpose for switching to WIND from Bell was because I wanted to have "unlimited data" to be able to stream music all day long at work. The "unlimited talk" was a nice perk, and at $50 for both, I was sold. This was May 2014, I signed up and got a Galaxy S5 through WIND.
I lived in Mississauga for a year on contract, and in Toronto (by the lake) for another year. So my experience is with both areas as well as working in Brampton and travel around Southern Ontario.
From day one, I was disappointed and by day 30 I was
livid. I gave up a Bell corp plan to come to WIND and with recent changes, I can no longer go back to the same corp plan.
Outdoor call quality is a solid 4/10.
Indoor call quality is a solid 0.5/1000000. I cannot use this phone indoors AT ALL. I literally had to go into my backyard (mississauga) or on my balcony (Toronto) to make a call. Funny enough, when I called WIND to cancel within the first 15 days, my call took me over 45 mins to connect and properly chat with them, which then apparently voided the ability to cancel the contract.
Data is a solid 3/10. WIND is only a 4G network, and a horrible one at that. The WORST part of it all is having paid for an expensive phone which is LTE compliant, only to be restricted to a network which works on 4G and crawls along. Once I get a youtube video to finally load, it buffers after every few seconds. You can forget using data if you are indoors. I drive long distances to meetings, using google voice to text is a pain in the ***** as it runs on data and "connection could not be made". I can't explain to you how frustrating this is/was.
"Unlimited Data" - is not really unlimited at all. After the first 5GB, you are restricted to 256kb (dial up internet speeds). It's hardly enough to even check your email.
Price - 10/10. For $50 a month, it's hard to beat. A 5GB/unlimited talk package costs about $100+ from any of the big guys.
Overall, I have one more billing cycle that my tab is cleared. Then I am literally going to light this thing on fire and throw it into a WIND store. I will NEVER, EVER, EVER in my life use WIND again. EVER.
Just my own (and current) experience with WIND mobile. In a few days I am happily signing a contract with Bell or Rogers for double the price and half the data. At least I can use the damn thing.