Garage is full of Aldi tools and have never skipped a beat. Everything from spanners to cordless drills a stud finder...
Regulary use the cordless drills etc at work and never skipped a beat.
The only issue I ever had with an Aldi product is the car stereo I bought which was awesome! But the usb socket failed within the 1st week...
Unfortunately when I returned it, they had no stock left, so I had to get the $ back which i was spewing as the deck was great.
Thats the only negative with buying things from there. The product they sell this week isn't going to be there next week or until they "may" have it again in a few weeks? months? So a lot of times with tools you can't take it and get a swap over , unless they have left overs at another store... So you're somewhat forced to get a refund. Which they don't hesitate to honor one bit.