I use the Tuxin V twin with the big Tuxin filter and it works well and i did have the small Yong Heng for about a year but it did take about 45 minutes to top up my 12ltr tank so i got the V twin . The only problem i had when i bought the Tuxin was the first time i used it was after about ten minutes after use no air was going into the tank, and the outhouse it was in was filling with smoke and oil was pumping from the crankcase breather. The seller i bough it from said i had to contact Tuxin this is when the fun starts after about 18 emails sending photos of the compressor and videos you find the warranty is not worth the paper its printed on .The last contact i had with them they told me i had to buy a second stage piston and i had to fit it myself , they could not understand when i told them there warranty was a load of crap. In the end after about 9 months i had a full refund from the seller , if you buy one and it work OK there good for the price i did buy another and it works well but the warranty is crap .If you buy one use a credit card not a debit card like i did as you get more help if you have a problem.