We loved staying in Le Marais and especially at Diane’s and Eric’s apartment. There are lots of stairs to climb to get there (very common in Paris!) but worth the effort. The bed was firm, the kitchen well fitted with appliances, gadgets, dishes, etc. Nearby are great grocery stores, cafes, bakeries, restaurants, etc. The Metro is very close by and was so easy to use.
I can’t say enough about our time at this apartment and dealing with Diane. If you’re able to climb stairs this is the perfect place!