The lift over means it’s more easy to scratch the rear bumper cover, so another thing to consider if using it for frequent hauling. The lift over bothers me more for cargo than the sloping window, but it depends what you’re carrying. In my Volvo wagon we didn’t often pack all the way to the roof.
I filled the Integra’s trunk with a mid-size cooler, small cooler, 2 boxes of snacks and a camp toilet, and I can easily imagine the same camping gear we use in our wagon, but it can’t handle the bulkiest items we did with the wagon like a 63” sideboard or our homemade skate/bike ramp.
It’s best to think of it as a large sedan trunk without the rear bulkhead or window in the way when you want to load with the seats down. It’s pretty good for large, lighter weight stuff like a bike or maybe musical instruments (I don’t play anything, just guessing).
This might help as well, if you haven’t seen it already, although it’s only with the seat up:
Acura Integra Luggage Test: How big is the trunk? | Autoblog