I know this is super late but here are my 2 cents:
I own a TD HSTA and my brother owns a Citica. I have used both, although the the Citica only sparingly. I find that the Citica, while smooth, does not feel as refined, robust or as solidly built as the Advantage, and rightly so considering the relative MSRPs. Casting wise, the HSTA is very good, but the Citica, in my opinion is more forgiving, and more suited to a more aggressive casting style. By this I mean an aggressive flick of the wrist at the end of the cast. With my HSTA, the casting motion is more smooth, and the reel does not react as favourably to a hard flick at the end of the cast. As a result, my brother has been able to outdistance me on a number of occassions with his Citica with very hard casts.
The profile, as mentioned earlier, may be an issue for you if you have small hands as the HSTA is wider.
I suggest going to a store and actually feeling the reels in hand. What is comfortable for one may not be for another.
Either way, I don't think you can go wrong.