The Njoy Pure Plug 2.0 is serious ass business. You will gasp a little when you first slip it in. It is a big, heavy, hard plug. It's intense but incredible - it gives you a wonderful stretch going in, and the bulk of its mass sits right on top of the prostate (and, in women, puts pressure on the G-spot). You can slide it back and forth over your prostate by clenching your anal muscles.

As for ergonomics: this plug is much more graceful than its size indicates. The oval shape of the head (it's not actually 2" around - it's more like 2" x 1.5") and the divots around the perimeter help it slip into and stay in your butt easily (provided you've warmed up and have some anal experience). It slides in so easily that it almost feels like it could fall right back out - but its size prevents that. Since it's made of stainless steel, it heats/cools quickly (letting it sit in hot water before putting it in provides a delicious sensation) and can be cleaned with just antibacterial soap and water. Note that its size and weight (it weighs as much as a can of soup) won't let you forget that it's in there, so it might not be good for long-term plugging or plugging in public.

My only complaints are a) it's much harder to remove than to insert because the base taper is steeper than the front taper and b) The handle is well designed but is too large for comfort. Overall, I don't recommend it for long-term wearing (though I'm not the authority on this, since I rarely wear my plugs longer than an hour at a time). However, It works extremely well for sex and masturbation. Just feeling it pop into my ass nearly brings me to orgasm. I highly recommend it to experienced anal players or even less experienced players who are willing to go through a bit more warming up than normal.

Everything I said about the Pure 2.0 still holds true. I still use it on a regular basis. I've tried wearing it for longer periods of time, and I've found that I really enjoy it as long as I don't move around too much - it gets kind of uncomfortable if I do.