Product review (2 stars): Could be good, only if templates for 5/8" hinges were included
I really want to like this kit. I finally decided to try and install slab doors after failing some years ago to do a pre-hung unit. In any respect I'm a novice, bought this and a router. I've never door mortising nor have I used a router. Kit is nice, albeit a bit clumsy with all the bits and pieces.

I bought it to use on the door only, leaving my jams unmodified. Problem is I have 3 1/2" hinges with a 5/8" radius. Maybe it's just me but I would think this is the most common style hinge. Low and behold the kit doesn't include that template. Not at all obvious from the item description and all their cheap plastic kits include the templates for 5/8" radius hinges.

 #29964 InteriorDoorKit upgrade is available which includes the 5/8" templates as well as some others. Only available through Milescraft for only $49 (rolls eyes) That's 2/3 the price of the full kit. Contacted customer service to see about buying just the single template as it is all I needed and they state that they don't manufacture the upgrade kit, so pieces aren't available ala carte, only as a full kit. So in the end I picked up the Milescraft 1220 from Lowes, which included the 5/8" templates and the door strike plate template for $35. The setup isn't as nice but it works and there is no way I'm paying $50 for the upgrade kit.

If you've got 1/4" radius hinges or square hinges this is a decent kit. Otherwise look elsewhere.