I've bought a lot of HF stuff and am generally very satisfied. My dad need to do alot of drilling in concrete basement walls to put in dowels. I was in Clarksville and they had a hammer drill (the Hilti type, Central Machinery brand) with bits for $80. He used that thing all summer and it's still going strong. I was expecting that you would kind of have to drill and pull, drill and pull, etc. It will drill right in and you better hang on! It has almost as much torque as my Milwaukee Hole Hawg (that I think I paid the better part of $300 on and it broke on my 5th hole! Milwaukee did fix it under warranty and I was only out $12 shipping and about a month of use).
I have used their hole set sets extensively when I built my house, and I was very satisfied. They chewed through multiple layers of 2x material, plywood, OSB, drywall, etc. I was too cheap to buy a real set of deep hole bits, so I would drill 1" deep with the HF bits, use a wood chisel (also HF) to break out the
cut, then drill again. Really not that slow, and it gave the hole saws time to cool off some.
The biggest item I have purchased was a HF wood lathe, on sale for $89. It doesn't have the rigidity needed to keep the headstock and tailstock from spreading if you crank it too tight, but it has let me get into wood turning for cheap. Now that I know I like it, I will upgrade to a brand name tool sometime in the future. Maybe that is something else the HF tools are good for - letting you know if you need/want that type of tool, and then you can justify buying a "better" one when the time comes.
Take care.