This article is for the hotel owner rather than the designer. Designers know, no matter how you spell it ambiance/ambience is why you renovate a hotel. The public's perception of your property is priority one and it needs to be refreshed every 5 to 7 years to keep it current.
Hoteliers often think of F,F & E as their priority and often try to cutback budgets when it comes to wall art, mirrors and other finishing touches. I liken this to wearing a $2,000 suit with a $5 tie, all the people see is the $5 tie. If you have a $300 suit with a $100 tie the perception of the suit is elevated. This is not to say lower the quality of the furniture and upgrade the artwork but the artwork should be at least the quality of furniture or you have defeated the purpose of the renovation.
When you enter a guestroom the first thing that catches your eye, the walls and drapes followed by the bedspread. The room needs to be comfortable and soothing and the number one optic in the room is the artwork and mirrors. If the artwork is small by ratio to the wall size it does little for the ambiance and can often make a room look cold and uninspiring.
If the artwork is a grouping of small pictures it can tell a story or if it is a larger piece it can enhance the designer's vision and both add to the ambiance enhancing the guest stay. A happy guest is a returning guest. The cost of happiness is often very small when compared to the F,F & E expenditures and upgrading can be as little as $50 per room.
In conclusion the hotelier hires a designer to create the look that will carry the hotel through the next phase of its life. The designer is a highly trained professional that understands the entire process including working within the set budget and the hotelier is primarily an operator. Letting the designer do their job will enhance the bottom line for years to come.