I had the Crappy Tire SE on my old Caravan. They were on sale when I bought them. I knew they weren't great, but I didn't know how much longer the Caravan would last, so I went for those cheaper tires.
It turned out my Caravan did last a lot longer than I thought it would (still had lots of little problems). Once one tire blew and I had to replace two (to make them balanced L and R). At that time the SE was also on sale (the SE comes on sale very very often). But it turned out for replacement, they pro-rate based on how much tread is left, but use the regular selling price to charge me (rather than charging based on the sale price at that time). I had to pay almost the same price as if getting one without the pro-rated replacement.
Also, the SE was rated at 110,000 km (now newer ones at 115,000km). But after 40-50,000km, the tread was almost all gone. This is the experience (i.e. SE having poor treadwear) with several people I talked to. I'm a gentle driver in GTA, and wasn't happy with how quickly the SE wore out.
For the cheap price, the SE served its purpose. But if you know you'll drive on the tires for a few years, I'd go for better tires.