Yeah It is very nice, i prayed many times there, I dont know if they allow non muslims to enter, In Dubai there is a mosque in Jumeira where every thursday they bring tours to that mosque, and allow non muslims to see it from inside and even take photos, but i dont know if they do it here. I think if anyone wants to go he/she needs to be accompanied by a friend who can guide him/her there and tell him/her what to do and what not to do.