Thought I'd do a review, 'cuz I got my Mango today... a bit over six months after I ordered it. >.>
Obviously they aren't the fastest at getting stuff shipped out, though the guy who is apparently in charge sent out an e-mail in November stating that he had underwent a series of emergencies (personal life stuff, I'm guessing), so... guess I just ordered at a really bad time. Plus the guy is offering a discount on the next order for all people who have had to wait beyond the expected delivery time, so that's cool.
I got the Mango STP, 3.5". Looks to be just the right size for my frame (5'4", 145 lbs). I was worried about a too-large bulge, but this is perfect. My jeans appear to have some extra room in the front anyways (guys jeans--the zipper has always stuck out and created a bulge to the point that I've had friends comment), and this just fills that space in. Yeah, the thing is pink, but it actually (sadly?) goes well enough with my skin. Genitals do seem to be a bit darker than the rest of the skin, and if you happen to be as pale as I am... 'darker' probably means light pink (and really, the color is not so garish or bright as I have heard it described).
As for construction: it's top notch, very professional. The receptacle is a soft, flexible silicone and it is the reason why I spent the extra cash on a Mango as opposed to less expensive varieties that use medicine spoons (I never could get medicine spoons to fit quite right, plus I find them kinda uncomfortable). The tubing is larger in diameter than I was expecting (about D = 5/8"). However, it isn't extended all the way to the exit (aka pee-hole), so the urine stream won't be unnaturally wide. The actual exit is 1/8". The Mango I got has latex tubing and it has already begun to swell. The people at Mango offer replacement tubing at $1/piece, though a full roll could probably be had at a home improvement store. I requested silicone tubing because I wanted to avoid this... but guess they forgot. I'll be e-mailing about that.
I also got the harness (the one made for STP's and packys, not penetration). I was thinking it would be useful when I wear boxers... think again. If there's a way for it to not look like I have an erection with the harness (sans briefs), I have not found it. Tried readjusting and even tucking the shaft into the harness waistband, but no dice; it comes out. I considered a "cock sock" for boxer use, but figured that would make using the STP difficult/impossible. I figured that the harness made by the manufacturer would surely allow for STP use... think again. I'm sure it could be managed, but it would require pulling the harness waistband down and even then the shaft points slightly upwards. It's really an issue of the tubing not being long enough when wearing the harness. If the tubing was longer (and you can request longer tubing), it would reach whilst still harnessed in place.
But overall, quite nice. Now I need to practice. And I never thought when I ordered this thing that by the time I got it, I would be almost 2 months on T.