Not that great.
I had the Sonia Kashuk Metal Eyelash Comb and loved it. It had pointed tips to separate your lashes after applying mascara. It was great until one day I went to clean it and a couple of the metal pieces of the comb fell out. I then threw it out.
For some odd reason this isn't the same and I do notice a difference. I just don't think it's worth $10 to get another SK comb that'll break again. I might have to try the Tweezerman eyelash comb instead...
I bought this because I wanted a lash brush with metal combs, and I can't find a brand near me that sells them. Since I love RT brushes I ordered one of these online, the brush is purple and black and has a metal lash comb and a brow brush. The metal lash comb is great and the brow brush does the job but it is a little scratchy. The RT Lash&Brow groomer is sturdy though because I own this for 4 months now and it's still in good shape!
I have come to really like this. The brush is god, although a little uneven. The metal comb is good enough for me - my mascara doesn't really clump much at all.
END OF UPDATE
I like this. It's not something super-special: the brow brush it plastic and not the best quality - the hairs are cut a little bit uneven. The lash brush is metal and not sharp at all. Some people may like it, while others would like this to be more dense. It does separate lashes, but it's not the best thing to brush out lumps, if you like the really natural mascara look. The difference between a brush like this and a spoolie is that this reachest between the lashes all the way from the root, brushing through the lashes so they don't appear stuck together, while the spoolie may be better at taking lumps out.
I would give this 4.5, but I think it's a good brush and I would repurchase this If I lost the one I currently have.
I bought this brush from iherb.com. They ship nearly all over the world and they have also lowered their cheapest shipping prize from $6 to $4. If you're a first time customer, you can use my coupon code JUZ808 and get a discount of $5 (if shopping for less than $40) or $10 (if shopping for more than $40).
I also want to say how the code works: if you use it, I get a small percentage of the price you paid. People earn money when you use their code. If you feel strongly negative about this, you can use iherb's own code ABC123, and only iherb will earn money from your buy.
I snatched this up with my first RealTechniques order, because I've always wanted a metal lash comb. It's a bit cheaper than the ones I could find in stores (Quo, Tweezerman), but I find that it probably doesn't do as good job. The ones I've seen have combs that are finer and sharper, so even though it's easier to injure yourself, they do a better job at separating lashes. The metal prongs on this aren't sharpened at all, so they have trouble getting clumps out of my lashes sometimes. The construction is nice and solid though, much better than the plastic foldaway Tweezerman has.
Overall, not bad, but for the high price, I was expecting something more amazing--after all, you can find the plastic lash combs for a buck, and this was 7 dollars.
I mostly just bought this for the metal part for my lashes, and works wonderfully. The bit for the brows I skip on, since I prefer a spooley.
Boy do I love the colors black and purple. But that isn't why I picked up this groomer. I grabbed it for the wonderfully low price, and the fact that it is the only one I have seen in stores in my area that have the metal lash part. I have been looking everywhere for one and finally found this one at one of the Ulta's in my area. The brow side is nothing super special, normal plastic bristles but it works and that's all I need.