Fail. But I applaud the effort.
This hotel does not need much of a review. In my opinion, this place is not worth it. I honestly believe that the owners are making a concerted effort to make improvements to the property that are very evident, but it's not enough. 
Let me start of with the positive aspects of the Hotel Solaire. The entire hotel has been recently renovated and I think they did an okay job. I thought the lobby was the nicest part of the hotel. Free continental breakfast was decent. DirectTV cable in every room was a plus. Convenient parking (only $2 per night). Free wi-fi. Friendly and heplful hotel staff. Electric car chargers in the parking lot
Now, let me tell you what I didn't like. The entire hotel, and especially the rooms, have a really nasty odor. I cant really describe the odor, but it seemed like a mix of chemicals and mold. My room had dirty, matted carpet. The bathroom had stains on the floor. Peeling wallpaper and a broken a/c unit. When I asked to use the gym they took me to a back room that was hidden with no signs directing guest to that location. The gym was an after thought I guess, because it was a sorry excuse of a room with broken equipment. The hotel is located in a terrible neighborhood with only 3 places to eat walking distance (Little Caesars, McDonalds, Food Truck). 
Overall, I would say that management is at least making an attempt to improve the hotel. As the hotel sits currently, I would not stay here again. There are better options if you head west across the freeway further into downtown L.A. If you were desperate for a room and it was only for a 1 night, you would be okay. Other than that, I would not recommend this hotel to anyone.