I have *huge* calves (~18-19") and these are the only boots I've found so far that fit them, thanks to the elastic panel.  For that reason alone, I'm keeping them.

However, they're not quite what I wanted.  The toe box is a bit mannish, especially under pants, so I'm pretty much limited to wearing them with skirts.  On me, they ran a bit long and narrow, and I needed more arch support, so I had to add an insole (Dr. Scholl's Tri-Comfort Orthotics Inserts).  They also tend to bunch at the ankle, and i'm not really fond of that look--and I can see that it might get uncomfortable over time, too.  They are also more casual of a look than I wanted.

But they are otherwise pretty comfortable.  They are VERY tight on my huge calves, but still comfortable, and don't give me muffin top legs--that elastic really does work miracles, and it looks a lot better than I thought it would, not tacky at all.  I couldn't tuck jeans or even leggings into them, but I'm not fond of that look anyway.

So, if you're looking for a casual, extra-wide-shaft riding boot that's not particularly feminine, these will probably work well for you.