Mapleview is one of my favourite malls in the area. They have a great selection of stores for everyone, a nice open food court and decent opening/closing times.
They really care about their customers (as a mall, obviously individual stores can be different experiences) and have done a lot to get better stores and improve the customer experience over the past few years.
The Anchor Stores are The Bay and Sears, both of which seem a bit dated compared to the rest of the mall which underwent massive renovations attracting some of the higher end stores that are harder to find in Canadian malls.
The issue is parking, they don't have a lot (understandable given Burlington prices for land) so it can be hard to get a space at peak shopping times, yet the mall doesn't have that packed feeling of malls like Square One when the parking lot is full