I run a 5377MG Makita every day, cutting all kinds of ****. A good portion of its use is cutting rips in fiber cement siding with a PCD blade. I've put utility blades on it and cut concrete. It does all my notching and cutting in timbers up to 6x6 cedar. Of course, it does all of this when it isn't being used as a regular 'ol framing saw.
Considering the way I treat it, I only have one complaint in three years of ownership: the depth gauge is made of a fairly soft metal that will bend when it gets abused, dropped, or crammed in a toolbox. It has proven difficult to bend back to smooth operation, but it still works just fine. The bevel gauge works great and is fairly accurate once you figure out how to use it. No, it does not have a diamond arbor, but when properly tightened, it is difficult to stall the saw out. Yeah, a big old Skil worm drive will push through a wet 4x4 with a rusty blade, but I'll take the trade-off in lightness and keep my blades sharp.
The saw is light and has an excellent skyhook for framing work or just hanging it on a sawhorse. I was concerned that the arbor nut wrench would fall out of the handle, but it never has. It is actually a fairly clever place to keep it.
Overall, it's a tank. I'll buy another when the time comes; probably just to add to this one, rather than replace it.
