If you need not just Mirage, but a maximally efficient Deathmatch for leveling up eims, then this is your choice. The prefix 'FPS' in the name is no coincidence.
Sandstone — fresh breath for those who have sat too long on the standard card pool. The Retakes mode is perfect for practicing situations after bomb explosion/detonation.
The perfect server for those who want to hone their skills on the most classic map. Mirage 24/7 is what you need for quality training and just pleasant gameplay.