for the small parts, such as hands, crowns, screws etc. I use this basket (I've gotten one at the local Dollar Store), which I removed the chain off, and it works really well. My basket is a bit bigger than the hight of the machine and I kind of squeeze it with the cover which is no problem at all. As for the bigger parts, I just put them on the bottom and let the machine do its works. I do not have any experience with any professional machine nor really have a need for at this time (something that same me money and space). the machine comes with two power 30w and 50w and I use the 50w for the longest time possible (30 minutes) and sometimes for watches that I tend to buy at the flea market or get from friends, I double the time and give it two rounds.
Do not waste your money with Esslinger unless for items that you can't find any other place.
A ) Ultrasonic Machine from AE
B ) Basket