Summary: I have used a makita battery powered drill for over 20 years and this hitachi is without a doubt the smoothest running and most user friendly drill I have ever used! the keyless chuck is so much easier than the old twist key which ruined my fingers trying to loosen the drill bits-I just finished refastening the nailed plywood floor with screws in preparation for putting new carpet in our 15 x 22 family room--I did it in 2.5 hours without having to drill one pilot hole...
Summary: Am pleased with product so far. Have not used it very much to date. Battery depletion was rather surprising as it stops instantly from just previously used. Need more time of use before I can properly evaluate.
Summary: The only problem I had was when I attempted to buy Hitachi attachment TOOLS. I couldn't fine them in any stores and the support center had me call a # in Florida which happened to be their ONLY outlet. They were had nothing like a catalog with various comb. of tools like other brands had, which I ended up buying.
Summary: Very nicely balanced, powerful, with long battery life. Handy chuck design makes changing bits quick and easy. Only negative is speed control is a little difficult (easy to run faster than intended).