zoe tsang simple opamp preamp/buffer kit on ebay

[zog666]

I saw this simple kit on ebay for a single opamp preamp.

Mini Preamplifier kit With NE5532 good for P7-sc | eBay

I was considering just making a simple cmoy style opamp-on-veroboard to increase the outputs of my miniDSP, but it looks like this kit could do the trick (with a socket for trying different opamps if I care to) with less hassle.

Anyone used them or have any opinions? Or are there similar alternatives around at this price? Appealing to me as it appears to be pretty much some minimal support circuitry for an opamp and not much else, which is about what I need.