It is a nice name. It is my middle name, which I prefer to go by. You can have cute nicknames, like Arlii, or simply the whole name, Arlene. It is a very mature name, landing itself to matrons rather than children. Which is why I like the abbreviation Arlii for young crowds.
This name makes me picture a middle-aged woman with big, red hair, a lot of make-up, and a thick Southern drawl in her speech who spends her time watching sappy documentaries and soaps on TV. It doesn't sound like a very sophisticated name.