Our four unit condominium HOA in San Francisco opted for 3 large and 6 small faux topiaries for our very low light lobby atrium.  Other limited design planting options were more expensive and required weekly maintenance. 
We are pleased with the minimal maintenance and extremely realistic quality these faux topiaries offer.
We will purchase a UV spray to apply occasionally for our 9 faux boxwoods.  The only adjustment we made was to drill drainage holes for rainwater that would collect inside the pot.  Love these faux boxwoods!!!