That's not an exaggeration. I had a USB FM transmitter before this and that had an annoying whine I couldn't silence. With this, it's true plug'n'play (yes you may have try a couple of different frequencies to minimise interference from your wireless router- takes less than 1 minute) and the sound is really impressive.
My DVD player was my previous source of music if I wanted more than a CD or two's worth. It doesn't play MP3's randomly so it was of limited use.
With the SV1740 I connect an external drive full of music to my laptop and stream random, wireless, great quality sound to my hi-fi amplifier downstairs. It's now a main source together with my Arcam Alpha 5 CD player. I bought a nice chunky lead with gold connectors for it and I'd have to listen very hard to pick fault with the sound I get from this unit.
There are very few things of which I could really say 'I couldn't be without it' but this is one.