Our stay at Beau de Beaubourg was great for our week in Paris. A representative met us at the apartment even though we arrived later than expected , they were helpful and accommodating. The apartments is exactly as pictured. The shower is wonderful and the bed is very comfortable. My wife and I woke up to beautiful sunlight pouring though these beautiful windows each morning. The location is fantastic! You are right in the thick of it and get to live like a Parisian. The neighborhood was great, lively and offered lots of great shops and cafés within walking distance. Be sure to hit up La Petit Marcel! The only downside is that if you're not city dwellers like my wife and I being on a very busy main road may not be conducive for a quiet relaxing stay.
We definitely plan on staying with Ludovic next time we're in Paris.