I have a pair of Eagle grips...
I bought a pair of eagle "secret service" boot grips (checkered) for a K frame (S&W 696). I really like them a lot. they are well fitted to my gun (the wood mates very nicely with the frame of the revolver), they are very comfortable to handle, and they also do not interfere with the use of speed loaders. I like they way the grips feel in my hand. They fill my hand and let me get a decent grip, but they do not get in the way with unloading or unloading the gun.
I bought another pair of boot grips from a different vendor, and although they are comfortable and fit my hand well, they actually get in the way of the use of speed loaders (for my Ruger sp101).
Based on my limited experience (I have only purchased one set of Eagle grips so far) I would recommend Eagle highly. The fellow who took my order on the phone was also really friendly, and the grips were delivered quickly and came packed in a little felt bag with a drawstring.