We looked in depth when we thought we had bought a 4 acre smallholding in Anglesey until we got gazumped, but thats another story. There is a good American site dedicated to Chinese Compact Tractors check out
http://ctoa.net/modules/newbb/Siromer and Landlegend seem to be the most popular in the UK, we contacted a lot of Siromer owners and they tell us of lots of electrical problems, oil leaks and even losing 4 wd. I did test drive a Siromer at my local dealer and I was very pleased with the build quality, but the reliability issues put us off.
We then looked at Landlegend, these are made by Dong Feng Industries and the UK dealer is
www.cowlingagri.co.uk . We have learned from reading various forums and emailing owners, they say the hydraulics are better and they are very reliable and a good tip is cowlinggri also sell on Ebay, there prices on there are little cheaper than on their official site.
Another plus point if you dont have a good workshop is the Siromer is flat pack, so you have to assemble it yourself, the Landlegend is already built and ready for work.
Cowling agri also sell other Tractors for all budgets.
Please note we have no connection to either company, just thought we would share our findings to help others as this would be a major purchase, so you have got to get it right. We also cannot confirm if any of the statements about reliability are true or false, just what we was told.