Hi Karen, I have Blondo booties (two pairs, one is a similar style but may not be the exact one as I can't remember the name).
I have been evil to these boots and they still look pristine! They are so good; I can't imagine actually buying any other brand. One light pair I actually got dye off my jeans on them, and I scrubbed them with Magic Eraser and they were fine. I've worn my black ones in snow, slush, water, for 8 hour days traipsing around London last spring - they were comfortable, warm and waterproof, and they still look reasonably new 2 years later.
As to the stretch, I'm not sure - I haven't noticed much stretch, but they may well has 'softened' a little in the width. Would a 1/2 size up work?
Overall, I can't recommend them enough!