I have trimmed my Enchanted Tarot, and while it looks a thousand times better without the borders (and now I can actually shuffle it), my trimming job was far from perfect. My hand is not steady enough for a perfect straight cut and we do not have much things as 'corner rounders' here... at least I haven't found them here for a decent price.
The cards do look a bit uneven in size (just a little bit) and the corners are square. I thought it'd not like it, specially after I compared with the perfect trimming done by other ATers, however... I like it. I don't know why, but it left the deck with a 'handmade' feel. As if each card had been individually done by the artist. And the square corners get worn after a while and no longer bother me.
I think some would cringe and retch if they saw my deck, but personally I like it. I am thinking about trimming one of my Mythic Tarot copies, and I'll be happy if I get a similar result even though it's not perfect.
I will post some pictures of it when I get home, so you can see and judge for yourself.