I actually grow Gewürztraminer grapes (it has a different local name here, but the same grape). It can be a fussy grape, very dependent on soil and climate to reach its best potential. For example, many say the French Gewürztraminer wines are better than the German ones. So where you source the kit may matter in the final wine results.
Aside from the above mentioned, this wine also goes well with fatty wild game (if you hunt, or know someone who does).
Gewürztraminer is not an uncommon wine one can purchase. If really not sure, picking up a bottle to try is to consider,and may be useful as comparative later to your own results (unless you really like that "unknown" factor and just want to be surprised when you are done with your own wine).