Yep, they're ok. Just like everything else in this genre the blades are damn expensive and easy to screw up (chip a tooth) so I don't reco them for everyday use. But for cutting something like grating there's no other (worthwhile) option IMO.
Evolution offers several (almost too many) options but compare carefully to the Milwaukee. Generally the Evo's are more expensive and don't include a blade until you get into their fully loaded bad-boy top-end model. That may no longer be true. And I don't know what the Evo warranty is but of course new Milwaukee will be 5 years. Look around for recon Milwaukees, quite a bit cheaper if you're ok with the recon 1 year warranty. I've heard the motors do burn up in these but this type of saw is easy to mis-use; push too hard, crooked cut, bind the blade, incorrect blade depth etc. So I'd suspect most burnt motors are operator error.
I've also set mine to "slot" flat bar leaving approx 1/16" of material, then bend it there and weld the cut back up. Poor man's hydraulic press brake.
All in all great when you gotta have it, but not an everyday tool for me.