Growing up, I can recall my Dad using a circular saw for everything.  After I purchased a home of my own, and being a bit of a DIY'r, I invested in a miter saw, table saw and Ryobi cordless circular saw, none of which I came to find were very good for cutting thick (4x4) or wet treated lumber, especially the Ryobi cordless saw which severly lacked power.  I received a Milwaukee 6390-21 circular saw as a gift.  I fell in love with it the first time I used it.  While I consider it a 'beast' due to its power and ability to slice through lumber like a hot knife through butter, I was surpised at how accurate and precise the cuts were.  Being a right handed saw, I was concerned about visability, but it's not an issue because you can clearly see the blade from both sides of the saw. The saw has a number of adjustments, all of which can be made quickly and easily, without tools. I agree with other reviewers that the included blade isn't of high quality, so you'll most likely want to purchase a better one. The hard case is larger than it needs to be, and is impossible to close if the saw isn't properly seated.  The case could also benefit from a place to store accessories, such as a rip guide (not included with the saw). Overall, I'm extremely pleased with this saw and highly recommend it.  As a result, I'm looking at other Milwaukee tools.  In fact, I just purchased a Milwaukee 2457-21 power ratchet wrench kit which I am anxious to use.