My main issue with it is that it doesn't work for me, personally. I think to wear as just a plain packer its a bit more comfortable because the funnel provides less silicon to skin contact which I find pretty annoying. As an STP it is next to worthless for me.
I have the old-style one (i know they came out with a deeper funnel? or something) and it always comes out the back as well as the front. Could just be my own personal morphology, but I've only gotten it to work cleanly once. That being said I haven't had much practice because who wants to piss themselves on a regular basis even just at home in order to get it down, and if it takes that much practice who says that one won't be out and about when it... misfires. I don't have time for that. I'm also not so keen on the idea of having a pee-wet silicon tube sitting in my pants getting all sorts of nasty for the rest of the day just because I took a wiz earlier on in the day. I feel like even if it worked I'd end up wanting to rip it from my pants and clean it off before going back to class or work.
As far as the play feature goes I've never yet had opportunity to test it out with another person. The rod goes in, and it certainly seems firm enough to get the job done as it were. I have doubts, however, about its staying power and whether or not the rod wouldn't end up going out through the tip and potentially hurting someone.
At this point, I'm glad I got it so I no longer have to wonder if it'd work for me, but at this point I wish I'd bought a 12 dollar packer and a nice strap on rather than a compromise in between. Woulda cost a lot less overall too.