Spark by Hilton could be a very nice place if not for a few serious flaws, the main one being room odor. On a stink scale of 1-10, I’d rate it a 7 for chemical/perfume odor. The smell is quite noticeable as you enter the room. It’s not as unpleasant as odors I’ve experienced in other hotels, but stink is stink. The goal is always fresh clean air, not smoke odor and not perfumey/chemical scents. What makes the situation at Spark especially egregious is that they deliberately pump the odor into your room by installing an odor disk directly into the air conditioner! When I asked about the smell at the front desk, they said it’s the same in every room. Shockingly, they don’t even consider having rooms with fresh air for people with chemical sensitivities, respiratory issues, or who just don’t like stink in their hotel rooms. This is insane IMO, but it is what it is. Fortunately, in my case they were willing to send maintenance people up to take the odor disk out of the AC unit, but if you get there in the evening after maintenance is gone you’re stuck with the stink until the next day. One additional gripe about Spark is that their mini-fridges don’t have a freezer, so if you’ve got ice for a cooler you have to bring it to the front desk and have them store it in one of their freezers. Thankfully, they’re accommodating about this. On the plus side, the rooms are good sized, well-lit, have ample desk/work space and comfortable beds.