I'd heard of these when they first launched a while back, but they didn't arouse any interest at the time. I was probably at a lipstick saturation point, particularly with Revlon releases. I do recall reading mainly positive reviews about them though, consistent with my general experience with Revlon lip products (I went crazy with their Lip Butters in 2012, have collection posts on their Super Lustrous, Matte and ColorBurst lipsticks, and bought a bunch of the Just Bitten Kissable Balm Stains — original and matte).
The Ultra HD Matte Lipcolor isn't completely matte despite the name. They're certainly not bone dry and moisture-sucking like your traditional liquid lipstick (e.g. Colourpop Ultra Matte Lips). To me, it's initially like a lip gloss and takes a long time to mattify, and even when it does, it's more of a slightly sheeny matte lip cream. The consistency is reminiscent of the NYX Soft Matte Lip Creams. They're a more forgiving formula, aren't remotely transfer-proof, but once blotted, are slightly staining. Longevity is nothing to write home about, especially since the product can easily fade off the lips. The applicator is excellent (great shape, easy control, distributes just enough product) and feels really plush and cushiony on the lips.
Revlon Ultra HD Matte Lipcolor in Seduction
l-r: Face of Australia Sundae, Colourpop Midi, Revlon Seduction, Revlon Elusive, Rimmel Notting Hill Nude, Maybelline Nude Perfection
Seduction is a light-to-medium pinky nude that I think suits Asian skin tones well. I like that you can build up your desired opacity with the wand. I prefer the look of the product lightly applied. When it's more full coverage (like in the pictures below), it looks more like your conventional rosy pink and loses some of its magic as an ideal "my lips but better" shade.
Compared with other nude lipsticks in my collection, Seduction is a pinker Rimmel Moisture Renew Lipstick in Notting Hill Nude or a more uniform Face of Australia Sheer Gloss Lip Crayon in Sundae, which is sheerer, patchier. Colourpop Ultra Matte Lip in Midi is more cool-toned with a touch of purple. Revlon ColorBurst Matte Balm in Elusive is a much warmer, brighter pink. Maybelline Color Drama Intense Velvet Lip Pencil in Nude Perfection is a darker, browner nude.
Seduction isn't super unique but the combination of the colour, formula and sleek packaging makes it my current go-to lip product when I feel in the mood for a lil somethin' on the lips but nothing too out there or loud. It's the quintessential "pretty" shade that's safe, unassuming and easy to wear. It adds a touch of muted, natural rosiness that's not too pink or brown, dark or pale. Bonus: the stuff smells like delicious baked goods.