With a 5AH battery, it lasts enough to get the job done, but it drains the battery within *10-15 minutes of continuous use. So don't expect that you will be able to use it and that the battery will stay charged for the next day. For electrical work, it is perfect, for junction boxes/switches/panels/holes/everything.
For home use, it is also very useful, but if you use it a lot, it drains the battery. But it lasts enough to do whatever you want.
It is not as powerful as an air compressor obviously, but it gets the job done. For example, for dusting the PC/keyboard, car... and generally anything that collects dust/chips/pebbles/sawdust and so on... it cleans them immediately. And it works for cleaning too. Generally, it works for everything, it makes your life easier.
It makes quite a bit of noise like all these things. And it is quite heavy with a 5AH battery, also the trigger can be tiring after a while, at least it has the LOCK so you don't have to hold it. I suggest putting a bit of oil on the LOCK so the spring doesn't make noise.
The trigger also adjusts the speed apart from the 3 speed settings.
The motor is not brushless, which makes it heavier and weaker and consumes more battery.
The suction happens from the left side of the blower, so many times it happens to suck your shirt (when you have it in your right hand) but it's a minor issue, it doesn't change much.
I also believe that you can do suction, because all the attachments fit on the sides (without locking of course), it almost certainly works, but it might be a bit risky...
UPDATE1: It does suction too, but the problem is that the attachment doesn't lock on the sides and keeps coming off if you push it a bit where you are sucking.
UPDATE2: You can unscrew a few screws on the sides to open it and clean it, but I don't know if that voids the warranty. Also, be very careful not to unscrew the fan because I unscrewed it for cleaning and then when I put it back exactly as it was, it pulsated like a heartbeat when I used it... and I have tried to take it out and put it back in with slightly different methods (tightening the screw/washer position) but it still pulsates like a heartbeat when I use it. At least now it doesn't do it constantly... but especially when I use it for a little while at full power, it does. So it's not worth taking the fan out. It seems that the installation needs to be done perfectly to avoid pulsating. The washers need to be in a specific position, and the screw needs a specific tightness. So don't touch it at all if it’s not necessary.
UPDATE3: I changed the washers with other safety ones and it doesn't do it now. So the washers were the problem.