I've been using this saw for about a week now and I am very happy with it. So far it has cut everything I've thrown at it.
Pros: Reasonable price for a portaband, good build quality, LED light is very useful, standard size blades and two blades are included which is nice to get you going right away, I personally like the pommel better than the round handle you see on some other mid-size portabands (but see cons), easy blade changes, uses ubiquitous One+ 18V battery, 90 day evaluation period and three year warranty.
Cons: No variable speed which is rather surprising, 2-1/2 inch capacity could limit its use for many applications such as automotive exhaust work, not a brushless motor, no case or bag for storage and transport, pommel is on the small side making it somewhat uncomfortable, all plastic build may not hold up to bumps very well.
Overall, this is a very nice tool and I could see it being used by both pros and DIYers alike if reasonable care and expectations are observed.