I picked up one of these at Home Depot recently. Finally got around to using it yesterday.
First of all, mine was warped!
as in the jig is slightly twisted down the long axis and it won't sit flat on the table. But from the comments I've read here (thanks for SO MANY helpful comments in all areas) I have to assume (how I dislike that word) that warpage is not common.
I am trying to make simple through dovetails in 12mm (slightly less than 1/2 inch) stock. I set the bit 1/2" deep using the template, but apparently that was too long - I didn't get clean cuts along the "wide" end of pins. I set the bit about 3/32" shallower and got clean cuts. I haven't cut the pockets yet.
Also I had problems with the bearing riding up on the shank. I had to stop a few times to set it back down. I'm not sure if another bearing (I used both) or a 1/4" stop collar is the best solution here.
FWIW my router is a Bosch 1617 with the RA1165 undertable base.
Oh, and I guess I should mention that this is the first time I've attempted dovetails
My 2 cents,