After 10 years of hard work it finally stopped working. I spent half hour removing the gunk, epoxy resin and paint just to get to the screws but after that it was easy. A quick clean with the airgun to remove the fiberglass and saw dust and a squirt of Inox lubricant and my driver should be good for at least 10 more years.

Expensive but worth every dollar, more power than you need with great battery life. So well made you can throw it on the concrete & not damage it, the three speed settings are indispensable & provide great control. The grip is unbelievably comfortable. Built for professionals & will probably last forever, they are however slightly heavier than say makita but for me this is no issue.

Have the latest brushless version of this excellent driver . 3 torque settings and even smaller . Run time is better, not that the original was bad .The torque setting is the reason I bought the new one, and it makes it more versatile for the difference in price . Worth every cent .

Used other brands [ hitachi ] the Bosch runs a very long time on one battery even screwing roofs down and installing purlin/ batten screws, good all round for weight and balance and have dropped it of ladders a couple of times with out any damage. Small enough to handle small screwing jobs and getting into tight spaces.
excellent battery run time, light weight

This is the first impact driver I have owned, wish I had bought one earlier, driving long heavy screws into thick timber or steel roofing screws thru corrugated iron an absolute breeze, no longer have to drill first then drive. Huge amount of torque, compact in size, rugged construction and the batteries x2 only take 10-15 mins to fully charge, buy a 3/8" keyless chuck (reduces to 1/4" driver) so you can use your old existing drill bits ect, (the Hitachi chuck is the better one) and you have a powerfull Driver and a powerfull Drill as well.
Heavy duty, tough with fast charging battery system.