This is my first Sleek purchase, I was tempted by the lipsticks too but this was my third item on a 3 for 2 and I was running out of time on my lunch break to pick out some more so I left it. I can always go back! The packaging on this, and the product as a whole actually, reminds me of the MAC Tinted Lip Conditioner. It even smells a bit vanilla-y.
In terms of colour, it's more of a sheen or a wash of colour than anything else. It changes the colour of lips a little but not much and I still want to wear lipstick over it if I'm going somewhere. Sleek Pout Polish has SPF 15 in it so it protects and moisturises. This is quite a nice product, especially for winter, but I prefer Carmex Moisture Plus as it gives a similar level of colour, comes in a stick so less mess and it really feels moisturising. I didn't feel like Pout Polish was quite as moisturising. This is probably a product that I'll keep in my handbag or desk at work rather than using it religiously.
They do a few other colours too, so if you're looking for a MAC alternative, I would probably go for this as I personally don't feel like it's that different a product!
Available for £4.29 from Superdrug, currently on 3 for 2.