Alister's place is a must-book apartment! It is everything and more than you'll need. It was very clean, tidy, furnished nicely, and close to the Metro, bakeries (right down stairs haha), and restaurants. Alister was very accommodating, friendly, and quick to respond to any questions that we had.
During our visit the strikes were still taking place so the Metro wasn't running; however, you can easily walk to all the attractions--plus, walking is great exercise after eating all of the amazing food in Paris. His apartment is very close to Sacre-Coeur and the surrounding neighborhood of Montmarte.
Stay at Alister's place--you won't regret it.