The only changes I made - I only used 4 cloves of garlic (because 10 is waaay too many for me) and I only used about 12 oz of cream cheese instead of 16. I also don't have an immersion blender (need to get one of those) but I used my handheld mixer and it worked out really well - it didn't dissolve the skins, but that was OK. We LOVED it. Topped with cooked bacon, cheddar & green onions.
Definitely have a lot of leftovers. Such a comforting dish on a cool night!