I've had the Simms Guide boots for about a year now and really like them. Very comfortable ( which is the most important consideration for me ), the upper is very rugged and looks like it will last a long time, and the streamtred sole not only has really good traction in and out of the water, but is replaceable at a reasonable cost.

Can't speak to the more recent versions of Korker's, but I had them for a number of years and my experience was that the quality control was inconsistent. I had a couple pair that lasted a reasonably long time and a couple pair that lasted a very short time. Also, the old system for using the different soles wasn't all that great - let a sole come out once and walk without it in place and that was about all she wrote as far as reliability of the sole staying in place. Hopefully, Korker's has remedied that problem with the new design ??

I'm a very brand loyal person. I expect to stay with Simms for a long time.

John