This is great location in a lively part of Le Marais and we had a great visit to Paris. Patisserei right out the door of the building. Plenty of dining and shopping in the area. Quick walk to a couple of metro stations. Easy walking to the Seine and several monuments and museums.
Be aware that you will be walking up several flights of stairs to get to the apartment.
We don't have a baseline for value of a vacatation rental in Paris. This was one the least expensive options in one of the locations we were looking to stay. This apartment is basic and it has everything you need. It wouldn't be my first choice if I was planning to spend a lot of time in the rental but it suited our needs very well since we were out every day and most evenings.