I have had terrible luck with wading boots. Most only last a season or so, a few have gone 2 years. Then again, my current $80 pair is the most I ever spent on a wading boot and I fish A LOT.
I had those ultralights once and they were extremely comfortable, grip was fine, but they lasted only 1 season. Sides blew out.
My best pair I had were Chota STL's, they are $135 retail but I somehow managed to get them 50% off on a closeout or something. They lasted just over 2 years.
After several more cheaper misses, I wanted to go back to Chota's. I found the Cabela's guidewear with studded felt for $80. I think they're nearly the same as the Chota STL, just a knock off, so I figured I'd give them a try. They've held up ok, will be 2 years in May. But they are showing wear and may not make it through summer. Despite it being my best experience, 2 years does not seem good to me and I think there has to be something more durable out there.
I'm thinking about getting a new pair now anyway, maybe some aqua stealth style rubber treads for longer brookie jaunts. Then I'd have both felt and rubber. I could choose based on stream conditions, get a good comparison of the rubber vs. felt, and perhaps allow my Cabela's pair a little less use and thus make them last longer.