I'm very satisfied with the quality of service and also the device itself makes a solid impression. Search, sort stations and also picking up on an external hard drive are well explained in the description. Only an older 2.5 "HDD has not get enough power from the USB port, easy solution, its own power supply! Have then a 1TB 2.5" HDD (ca 2y.o.) is connected and which is done without power supply. The programming and consequently the recording have worked out great.