I bought the hackzall many months ago, and was initially unimpressed with it, comparing it to my Sawzall and Sawzall Hatchet. BUT - after having it on hand for a number of months, I can now say that this is a GREAT tool, for those specific jobs where a real sawzall can't fit, or for any job where you would consider using a hand saw of any kind. The portability is a huge plus. The number of uses for this tool continue to expand, based on how handy it is to have around. The driver-drill is at least as good as the Bosch unit, and the locking collet design is a nice plus.
All in all, a tool package well worth the price. The only negative I can still find at this point is the cloth carrying bag. There are no hold-downs for the tools, so everything tends to get jumbled up and tools bang into each other in transit. At least some sort of pockets or velcro tie-downs would be an improvement.