The FeatherFire is one of those "air-inlet occlusion" designs that I mentioned. If you really want to use an alcohol stove but need to simmer it's certainly not a bad option, though a simpler stove with a simmer ring would be, er, simpler. (I guess- I'm sort of talking out of my @$$, since I've never used the FeatherFire.) Several people here have them and like them, so I'm sure that it will serve you well, but it offends my sense of simplicity... :)
When cooking for one I find that my 0.9L pot fills me up very satisfactorily. I mean- imagine eating 0.9L of rice or pasta... (The more fanatical guys here use a beer can or a 475mL mug and do solely freezer-bag-style cooking using a cozy.)
I find it big enough to make me a generous meal and a hot drink. But all I do is boil water for pasta, rice, couscous, polenta, oatmeal, etc. (And all of that in "instant" form.) Very rarely do I do anything more involved. Also, I don't really do trips longer than a couple of weeks. If you do longer ones and anticipate the metabolic burst that comes with it and will be gorging on massive amounts of food, MAYBE go up to a 1.3L pot, especially if you'll be sharing cookware with a hiking partner. But OTOH 0.9L works for Andy Skurka, who gorges on massive trips (google him if you haven't heard of him). Eh- I'm sure 0.9L will be fine, especially for a female, who will have less caloric needs than us fat guys.
But I don't know if I've mentioned this- you may not want a titanium pot. Titanium does not conduct heat well (relatively), so it tends to form a hot spot right under the stove. This is no problem if all you're doing is boiling water, but if you're frying or baking or generally doing anything more complex than boil water it can scorch food in the center. Frankly, this is a problem with any pot combined with any camping stove that doesn't have a very diffuse head, but the titanium certainly can't make things any better. You may want an aluminum pot, which may be SLIGHTLY better. (Ignore the random wackos who will now pop up claiming that aluminum pots cause Alzheimers.)
Open Country makes a selection of anodized aluminum pots with very thin walls such that it is just as light as a comparable titanium pot. It's a bit more delicate, though, due to the thin walls. Of course, it's also easy to bend back into shape. TD sells them. And it's a hell of a lot cheaper than any Ti pot. It needs a pot-gripper, though, so that's where the weight gets you, I guess. Or you can just use your gloves.
EDIT-- Being custom fitted to a pot really isn't much of a drawback for the Caldera Cones. I mean, if you buy a $60 Ti pot you're sort of committed already, y'know? :)