I'm a newbie so I hope I'm posting this correctly. I'm trying to differentiate b/n 3 hotwire options. April 13th. One option is 4 star for $109 in Downtown -Harbor Island. Non-smoking, pool, fitness center, high speed internet, business center, restaurant, airport shuttle, and tennis nearby. (I'm wondering if that is Sherton Marina?) The other is a 4 star for $109 in Gaslamp-Convention Center. Non-smoking with fitness center and pool, restaurant, high speed internet and business center The other is 4.5 star for $173. Downtown-Harbor Island. Fitness center, restaurant, and high speed internet. any help much appreciated!