Had a great week in July, sightseeing in the mornings and beach in the afternoon. The appartements are right in the centre of Nice, a couple of minutes from the main square.
Check in/out is hassle free with Stephane, and the appartement is comfortable, clean and surprisingly quiet for a good night sleep.
All bus stops and the railway station are within 13 minute walk, and the beach is a few minutes.
Monaco, Eze, VilleFranche, Antibes, etc all within reach for 1.50 Euro each way. We took the train to Monaco and Antibes, much quicker but a bit more expensive (worth it)