As a 100% glycerin lube, His lube doesn't have a particularly smooth texture. Most glycerin lubes contain other ingredients that improve the feel of the lube, but as a warming lubricant pure glycerin provides the most warmth. The source of heat is actually due to a process that takes place as the glycerin mixes with water on the skin, producing an increase in temperature as the two liquids combine on the molecular level. Due to the lack of modifiers (which would reduce the heat of the reaction), His lube is somewhat thin in viscosity: it will run off where you applied the lube if you're not quick to spread it. Also, due to the lack of modifiers, the lube doesn't spread well and will bead up to some extent on the skin. Fortunately, the lube is in a small flip-top bottle that makes it easy to apply and quickly spread.
As a silicone lube, Her lube is much more smooth in texture. It's about the same as His in terms of viscosity (about medium-thin) but spreads much more easily into an even layer on the skin. Her lube is also in the same style of bottle that makes application easy. Please note that silicone lubes are much different that water-based or glycerin lubes in that they require soap and water to remove. Some people love the long-lasting soft feeling on the skin from the residual silicone (a reason that silicone is found in most cosmetics) but some may be annoyed by having to shower to completely remove the silicone lubricant.
Because Wet Together was intended as a couples' intercourse lubricant system, it is not flavored. His lube is odorless. Her lube smells minty due to the menthol content (from peppermint extract). The mint aroma is moderate in intensity and not overwhelming. The bottles are both labeled "for cosmetic use only" so I did not taste them.
In the Wet Together system, most of the lubrication factor comes from Her lube. His lube doesn't work particularly well in terms of lubrication; used for a handjob, His lube did provide lasting warmth, but the slipperiness faded quickly and became uncomfortable. Her lube, on the other hand, stays slippery indefinitely due to its silicone content. His lube will mostly wipe up with a towel or tissue, and can be removed completely with just water. Her lube requires soap and water to remove completely. Just tissues and/or just water will not remove Her lube.
Wet Together came packaged in a small plastic box that shows both the His and Her lubes through a clear window on the front of the box. The package is dominated by a blue and pink/purple motif. The bottles are safely tucked inside with reinforcements to keep them from bouncing around in the package. Furthermore, underneath the flip-top cap, each bottle is sealed from the factory, preventing leaks during shipping and providing evidence that the lubes have not been opened or tampered with.
The packaging includes directions for applying and removing each lube as well as a statement that the lubes are latex compatible. The ingredients of each lube are listed on the package.
Though the packaging makes it obvious that it is a sexual lubricant, it doesn't have any nude models or raunchy descriptions; overall the packaging is tasteful. A nice feature for travel is that His and Her bottles are small and are easily packable individually.
His lube is warming. When applied to the skin, the glycerin mixes with the water on the skin to produce heat.
Her lube is cooling/tingling. The menthol from the added peppermint extract causes a cooling and tingling sensation in area its applied to, much like the sensation you get from chewing gum that contains menthol.
My partner did not wish to try the Her lube on her parts, so I applied a bit to my outer anus (which experiences similar sensations to the vulva). The cooling sensation has a slight delay and then increased to a maximum sensation in about 30 seconds. Be careful not to apply too much, give time for the sensation to build before adding more of Her lube.
His lube was not very slick. When used for a handjob it became uncomfortable after a few minutes due to the drag; I also felt like it was drying out my penis (which makes sense because the glycerin draws out moisture from the skin to produce heat). The warming sensation was pleasant though.
Overall, I think I prefer a more natural-feeling lube, both for intercourse and outercourse. The glycerin His lube was not quite slippery enough to feel good and the silicone Her lube required an inconvenient trip to the shower to remove.