I got one a few months ago and have probably 50 hours on it. So far the flow switch abd thermostat went in the first 15 hours and they didn't include the bulbs in the test lights. If it was a 12v burner/test light system then I probably could have figured it out, but 120v lights that size are hard to come by.
Before I turned it on I noticed that the flow switch was only rated for 8 gpm and of course put up a fuss saying I got a 12 gpm burner and of course plan on using using that flow. They sent an upgraded flow switch which turned out to be good as the orginal one crapped out on me.
Over all, so far yeah the fuel tank is too small for the burner and has no sight glass either which is a real pain. My last burner was only 238000 btu's and had an 18 g tank while this only has 12 g. When my tstat went out I went without it and ran the machine full out and had between 3-4 hours till the tank went from full to dry.
Would I recommend it, yep if you are running a 8 gpm + setup. If your setup is smaller then this get a smaller burner for fuel reasons.