Very nice indeed, and at $1,400, I think you still got an excellent price.
As far as EOTech sights go, we've got two on ARs in my family, and we've had no trouble getting irons to cowitness with the reticle in the bottom 1/3rd of the optic. They work just fine in that regard, without the adapter. At least for both me and my 20 year old son they do. Raising the sight further by means of an adapter would actually make it impossible on either of our carbines to cowitness the irons with the reticle because only the very top edge of the front sight would be visible through the EOTech when using the rear sight.
That said, optics are very much a matter of personal preference, and what works for you may not be the best choice for someone else. I agree with gigag04 that you should ditch the EOTech if you can't make it work for you. (Fortunately for you, if you do decide to swap it out, you shouldn't have any trouble selling the EOTech of you want to get rid of it entirely.) But resist the temptation to ditch something that works, based on snob appeal, at risk of obtaining something that doesn't work for you. I once tried a friend's AR with an Aimpoint sight on it, and I didn't like it as much as I do the EOTech because my field of view was too restricted and the "both eyes wide open" thing didn't work for me on that optic, but that's me. Other friends of mine prefer the Aimpoints for the same reasons I prefer the EOTech. Those that can afford them really like the ACOG, but I've never had the opportunity to try one out for myself. But for me, with my 57 year old eyeballs, the EOTech makes target acquisition and reticle placement easy to do with both eyes wide open — and that is the desired result, whatever combat optic you choose. My only real objection to it is one of esthetics. It is a large, fairly heavy piece of kit, and it doesn't "look like a scope," sitting up there on top of the rifle. Rest assured that, if you do decide to keep it, your optic isn't a piece of junk. It is actually very well made, quite rugged, and it works as advertised.
One suggestion if you do decide to keep the EOTech, consider adding a magnifier on a flip to side mount. However, I don't consider that to be absolutely essential, as this really isn't a long range designed weapon you've got there, but it will add some versatility to your optics if you don't mind the extra weight. (My friend whose Aimpoint I tried out had a flip to side magnifier for his Aimpoint. He also had a suppressor on the rifle, and that was the first time I ever fired a suppressed weapon. Kewl.) Also, the flip to side magnifier can be stored off the rifle until needed without affecting the zero of your optics system. Keep in mind though that, if the battery does go down on your EOTech (or other battery powered optic), the magnifier will be useless because you will no longer have a reticle.
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