I've got the Yiynova MSP19U which according to
Frenden has the same digitiser.
I found the performance was good, out-of-the-box pressure response felt much nicer that my Intuos4, but I couldn't get it working in Linux so never put it to any real work.
Also got a Huion regular graphics tablet which was decent, much nicer pen and build quality that the Yiynova.