raypalmer:I confess I didn't click through your link there. I'll just respond to your initial question.
No, and then yes.
The budget ones are rubbish. The reasonable ones, say Jolida JD302 (although it's not really available in the UK) run 1000bucks and knock around most/if not all of the transistor amps in that 1k to 2k market. But only if you like tubesound. If you want very forward, concise and zippy sound... You'll hate it.
The cheap 3-40watt chinese jobbies and DIY's really aren't very good when you stack them up to the real deals. R&D combined with good craftsmanship remains, not surprisingly, at the top of the list of things that make hi-fi sound good.
In my experience, the answer is yes, but as raypalmer says, some Chinese stuff is not good at all.
I presently own a Jolida 102b, the most affordable of the line. I have two friends who own the aforementioned 302b, which has 50 W instead of the 20 W mine has. The 302b has more power, with better bass slam, and a bit more detail, but the 102 has a special charm that the 302 doesn't have, and this is because of the output tubes used. The 102 uses EL84, which is famous for its sweetness and liquidity (it's often used in guitar amps, and many classic tupe amp designs from Eico and Scott use this tube). I really prefer the 102 to the 302, unless you need more power to drive bigger or less sensitive speakers. A guy on Audioreview who previously owned the 302 and then bought the 102 thinks the same way.
I've owned Creek 5350SE (ex-Stereophile Class A), Creek Evo, Arcam A65 plus, Arcam A80, Simaudio Moon I-3, NAD 320BEE, Exposure 2010, and the Jolida is still the best amp I've had. It just makes me want to sit for hours and enjoy the music. If I compare the Jolida to one of the SS amps I've mentioned, I can always find the SS faster in the bass, with a lower noise floor, and a more controlled sound overall. But the Jolida makes me enjoy the music more than a SS, and that's what hi-fi should do. Now, as raypalmer said: it's a matter of taste. If you like tubes, then you will probably think they sound better than higher priced SS amps.
Some Chinese brands are sold under European names (Vincent for instance) at higher prices. But if you can find the factory in China, you then realize they are sold under a Chinese name at a third of the European price! So you have to be carefull.
I don't know the amp that's on the link, but those stock tubes don't seem of a good quality. Probably the amp itself is good (the transformers are the most important thing), so you can always swap the stock tubes for some Svetlana, Electroharmonix, JJ Tesla, or even better, some NOS tubes, if you can find a good deal.
Regards,
Ros