Number two is age. Blossom Park is now 20 years old, while Legacy Dunes is only 10 years old. Oddly enough that would tend to favor Blossom Park as the odds of the air-co system having been already replaced will be higher. Do keep in mind when buying older bargain condos, that the air-co system will often need replacement now or in the near future. The builders went as cheap as possible and a 10 to 12 year life is about the max you can expect.
Got to admit that neither of these places would come to mind when recommending bargain condos to clients for short term rental. As noted they are both in the middle of mainly tourist areas. I'd think you would find better places for long term in Kissimmee proper.
Happy to answer any more questions Karyn@searchfloridahome.com