Got this Amazon Denali 20V Cordless Sander Kit for light duty use around a small homestead, mostly painting prep for repairs or building stuff. Design is good, fairly atypical of mid range 5in random orbit sanders, but noticeably not as compact & light weight as other Denali tools. This appears to be a rebranded Skil SR6604B10 but without the Skil PWRCORE 20 battery & rapid charger features. Only problem I see is the power switch is too low profile and offers no visual indication if it's on or off (bad design, would be unsafe on any bladed tool). Build quality is good, this feels like a well made tool, nice durable casing, but the dust collection bag is flimsy. Functionality is good, works well. This is not as powerful as corded or brushless sanders but still more powerful than a couple 25 year old corded palm sanders I have. Speed control is nice. Dust collection suction is good, but the bag it goes into is mediocre (Skil's cartridge looks better, maybe Amazon can offer it as an add-on), if working inside be sure to use a shop vacuum with a good filter, the dust port accepts standard 1-1/4in vacuum connections. Price point is good compared to other name-brand tools, and this is higher quality than stuff from similarly priced Chinese generic brands, even if they offer better performance the service life will be shorter, which is reflected in Amazon's warranty. The rest of the Denali platform is good for similar light duty home DIY & hobbyist use, here are the tools I have: - Angle Grinder, nice compact mid-range grinder with thumb switch, nice side handle back position & wrench in the side handle, good for small tasks, but power hungry, comes with only 1x 4Ah battery, runtime is 15min with 100min recharge (4Ah batteries are overpriced, as of this writing a 2nd 4Ah battery by itself is $20 less than a 2nd angle grinder kit). - Impact Driver, 1/4in bit driver, good mid-range power, handles 10x3.5in torx deck screws well and anything smaller easily, but struggles with bigger stuff, not intended to drive larger sockets but can probably take lug nuts off a smaller car. This includes an extra battery. - Hammer Drill, good mid-size drill-driver, weak hammer action also handles 10x3.5in torx deck screws but slower than the impact driver, easily handles anything smaller, struggles with anything bigger. This includes an extra battery. - Rotary Hammer, small, a little weak, slow yet capable as a SDS bit drill & hammer drill for home DIY tasks, but has no hammer-only mode (no SDS chisels). - Jig Saw, nice little saw, as powerful as 40 year old corded jig saws I've repaired and used on DIY home remodeling projects. - Oscillating Multi-Tool, nice tool, but the blade locking hex bolt + hex wrench is clunky, other brands use various styles of toolless chuck. With the Hammer Drill and Impact Driver each providing two batteries, either one is a good entry point into this tool platform (or both is great), and provides the spare batteries & charger to use any of these tools all day at a casual DIY pace, except for this power hungry angle grinder. With more batteries some of these tools can do alright in light duty professional usage. Not all of the Denali tools use weaker inefficient brushed motors, I narrowly missed getting the 12in chainsaw with a brushless motor and a 4Ah battery, should be nice, and goes well with an angle grinder. Cross compatibility with Skil PWRCORE 20 batteries & rapid charger is nice and pushes many of these tools over to lower tier professional grade performance, especially with the bonus torque from a 5Ah battery. Overall, 5 stars, good sander.