Kinda depends on what you plan to do with it, to be honest. I am still experimenting with bases and by and large everything has been hit or miss. This includes the spectrum of paints, paint pots, shadesticks, paint sticks, fluidlines - whatever. (I guess it depends on the weather for the day, the mood my skin is in etc.)
I own four shadesticks; Beige-ing, Crimsonaire, Sea Me and Lucky Jade. Of the four, my Beige-ing (the first one I bought) has been the hardest to work with. I'm not sure whether it was just a bad batch, but it is difficult to apply, not particularly creamy and hard to blend. That said, I do think it makes a decent enough base when all of those conditions are met. (I have cold hands so the usual warming trick does not work for me).
The other shadesticks have offered better luck. They go on smoothly, blend out nicely and are a decent base for intensifying colour. They are not an every day thing for me, however, as I rarely wear vivid brights for a daytime look.
Paint sticks (I own Pure White and True Chartreuse) are wonderful, creamy things. I bought them to do some Hallowe'en looks and found they blended very easily. You can even blend them out with mixing medium for nicer coverage. Pure White does make your eyeshadow stand out (in the same way that Fascinating Eye Kohl or NYX Jumbo in Milk would) but due to its consistency it makes your shadow crease, at least in my experience. If you have drier lids or you put it down over a base like UDPP, you might have better luck. Paint sticks are a ton of fun theatrically though!
I own one Paint Pot - Bare Study. It doesn't seem to be the base for me as I have oily lids... but it works really well for some people so I don't knock it. I may start putting mine to an alternate use (such as a brow or cheekbone highlight).
