I love my Lang 84. Is a reverse flow smoker any better? NO.
Always remember, it's the cook, not the cooker.
I can smoke meat just as good on my little Brinkmann PitMaster Deluxe.
If you did a taste test between the 2, you would not be able to tell the difference.
The only thing different is that it has a steel plate running the entire lenght of the smoker and you can use that as a grill like in a restuarant. You can't do that with most other smokers that I know of. Other than that, not any better than any other style smoker.