Unfortunately, I would venture to say that yes, you are all experiencing user error.
None of us are getting paid by Mr. 510 to say that it's the best, so why would you think that you're right when more people using e-cigs prefer the 510 than other models?
Call me crazy, but we KNOW FOR A FACT that what you're saying isn't true. The 510 DOES produce a lot of vapor. It DOES produce good
throat hit, and it DOES produce decent flavor. There is absolutely no arguing it - if your 510 isn't doing those things, you're either not using it right or you have bad components. End of story.
As a matter of fact, I'll go even further. Every e-cig on the market that you can
buy has been proven to work. No matter which you're talking about, there is a video of someone getting good vapor, praising the flavor, and praising the
throat hit. Anybody saying that ANY model doesn't produce vapor is either not using it correctly or has bad parts.