This is my second set of Ohtsu ST5000 255/55R-18's on a 2012 Acura MDX. I use these for low miles city driving and occasional long drives in wet/snowy weather (4-5 trips/year) and less often on muddy unfinished roads (2-3 times/yr). I think these tires represent the most bang for your buck you can get in an all weather performance tire on a daily driver SUV. If you've done the research you'll know these are identical tires to the now retired Falken Ziex S-TZ04, made by the same manufacturer. I think there is no compromise in highway ride quality and performance compared to premium brand All-Season Touring and Performance SUV tires. These are grippy, well tempered, well engineered, high performance, high quality all-season tires. If you care most about tread life and trying to eak out mileage from your tire choice (I'm skeptical that there's much to measure here here unless you commute hundreds of miles per day) then you may want to look elsewhere. If you do mostly suburban and city driving and want a fantastic all-around tire that will get you out of occasional snow or mud, I don't think you can do much better at any price.
Pros: low price (under $100 each, plus road hazard warranty) cold weather, dry performance, wet performance, low noise, mud and snow performance, appearance.
Cons: Brand recognition, availability, only one year road hazard available from ST, potentially less than optimal tread wear.
I'm not sure about: weight, rolling resistance or gas mileage. These are not big factors for me, but there doesn't seem to be much info or testing out there for these tires.