Personally I wouldn't focus so much on the species of the wood. You can play 20 spruce guitars and they will all sound radically different. There is just so much that comes into play. As with any guitar that you're seriously considering... play it for a good while in direct comparison to your favorite and most familiar guitar that you currently own. After playing it for 15-30 minutes, see if you like it. If you don't like it, certainly do not buy it with the hopes that it will get any better down the road. I do believe guitars can change over time, but it is a huge gamble to think that a guitar you dislike will slowly transform into a guitar you like or love, which probably does not happen often. You must love the guitar on day one, and you'll love it more as time goes on (unless you compulsively like to buy and sell guitars on a regular basis, in which you start to realize its flaws and shortcomings over time).
I once owned a brand new, fresh off the bench Spruce top... I wasn't too thrilled with the sound but played it several hours a day for several months hoping it would get better with time. The guitar did indeed change. The basses became bolder and the sound more refined, but never to the point where I felt that I really loved the guitar and I don't think years of playing would make much difference. I believe a guitar has an inherent tonal profile that will always remain the same. Then I went and got a different spruce top... I fell in love with the first pluck and loved it until the end. Every guitar is different and you need to judge each one for what it is, regardless of the material that is used.
"Success grants its rewards to a few, but is the dream of the multitudes.
Excellence is available to all, but is accepted only by a few." - Christopher Parkening