from Northern Tool website, review on 15 amp Milwaukee Sawzall.

"One of the best things about this saw is the ability to go through plywood from a center area without having to drill a hole for the blade first. I have had other orbital blade motion saws, but they still couldn't really puncture their own hole. With this saw, if you lay it as close to flat as you can and start slow as you angle up, it will cut a nice groove and then plunge through. I regularly need to cut access holes, and this saw gets it done fast.
Blade changes are fast and easy. Saw works good with blade reversed when space doesn't allow correct blade usage. This saw has very good positive bite, so the saw tends to pull itself against what you are cutting. This means less jump back and less bent blades.
I've used a lot of sawzalls over the years, and this one is the best I've ever had."