I've not had any trouble with reusing Great Lakes bottles. I've used and re-used them many, many times over with no issues.
I agree that a hot water soak is usually all that's needed to get the labels off.
Actually, if I buy commercial beer it's usually Great Lakes because the labels come off so easily. Other than that, I've been stocking up on 22 ouncers that don't have a paper label at all, like Rogue or Stone. Having several big bottles makes a big difference on bottling day.