So far I haven't met a DLE I didn't like. I have been setting up the 30s for the most part but got to do a set up on the 55, both are great right out of the box except for the spark plug that comes with the 30. It's some no name made in china plug that looks like a CM-6 but it isn't. Once that is removed and tossed and the good plug is installed the 30 fires right up and requires no tuning to speak of. The 55 runs as well as the DA but the DLE casting is a bit rougher. I haven't opened either of them up to see inside so can't say what the machining looks like. In the last year the DLE is turning into the number one engine for the under 50cc engines. It's hard to beat the price so if you can't afford a DA then the DLE is a great choice. There are pages and pages written about this engine in the gas engine forum, well worth reading.