I hunt in rubber boots a lot, probably wear mine 250 days a year between hunting and running the dog and off-season scouting. We have a lot of hilly swampy areas, crossing small streams and bogs, etc and rubber boots are great in that. I do a lot of bird-hunting, often the best shooting lane through an alder thicket is IN the water, so rubber boots help a lot. I regularly put in 10+ mile days in nasty stuff in them, blisters are not an issue any more so than with other boots--that's a foot issue or a fit issue if you ask me. However, in steeper terrain most rubber boots suck--any kind of a side hill and the soles will roll under your foot, they're just too soft. You have to wear them too tight to get good footing in that kind of terrain. The best I have found are the super $$$$$ Le Chameau's previously mentioned--the leather lined and totally uninsulated version are much more secure on your foot than the type that uses neoprene inside, as well as lasting much longer. They also feel drier and grip your foot better so less "roll" on side-hills and less heel-lift than other rubber boots. I got sick of other rubber boots cracking on the creases and wearing holes in the heel-neoprene inside, and tried a pair of these, and 20 years later I'm on on my third pair. I wear them bird hunting as mentioned, and I also wear them tracking in the snow in pretty steep terrain, as well as everyday scouting and dog work. I wouldn't buy them if you need insulation, nor would I buy them for occasional use unless you aren't scared of the price tag, but if you'll use your rubber boots a lot, especially in steeper terrain, I can't recommend them enough. That said, I havent run across many places in the rockies or west, outside of alaska, where I'd bring my rubber boots instead of leather. I'm sure those places are out there, but...