To be honest, I haven't run it a lot and all I have to compare it to is the LRP28S3 it replaced. It has more low end torque than the 28. I've had pretty good luck with LRP's over the years and wouldn't hesitate to buy another. I've had 4 or 5 of the 28's.
The one this 30 replaced was giving me fits. However, after getting the 30 and finding I had similar results, I figured out my fuel tank o-ring was shot and it was sucking air/leaking fuel everywhere. Once I replaced the tank, the 30 started responding how I would have expected. Odds are, the 28 I took out that only had a 1.5-2 gallons on it is 100% fine, but I never put it back in to see.
Before these, I had an LRP28 in a losi aftershock and the performance of it hands down beat the LST2 stock engine my buddies were running, the Dynamite Mach 427. I was able to pull taller gearing and still get better top speed and punch off the line.
One thing though, the LRP28 and I'm assuming 30, did not care for teh HPI polished pipe. I think it needed something a bit more restrictive or it would have a muddy tune in the middle of the RPM range. Was fine on the bottom off the range, then it would burble and burp in the middle and open up at 3/4-WOT. I run a losi LST HT pipe on it and I can get a clean sounding tune from idle to WOT once it's warmed up.
I have another LRP28 in my big block revo that I run a THS revo big block pipe on and it does pretty well too.
Last video of it if you want to see the 30 run:
From the video, you can see it wasn't shifting early enough to hit the jump well. I had the same issue in the skate park near me. Which is partly why I was taking the engine out tonight, to put a smaller cb on it so I could leverage more of the speed of second gear in most of the places I bash.