I'm learning Mandarin right now and I love the grammar. I studied Spanish in high school and the lack of conjugation in Chinese is superb. I even feel sorry for people learning English now.

    我是很酷。  
    （Wǒ shì hěn kù.）     
    I am cool.
    
    你是很酷。  
    （Nǐ shì hěn kù.）     
    You are cool.
    
    他是很酷。  
    （Tā shì hěn kù.）     
    He is cool.
    
    她是很酷。  
    （Tā shì hěn kù.）     
    She is cool. 
    
    我们是很酷。
    （Wǒmen shì hěn kù.）   
    We are cool.
    
    他们是很酷。 
    (Tāmen shì hěn kù.)   
    They are cool.

That 是 (shì) stays consistent through all the sentences. Love it. Also the fact that 他，她，and 它 (he， she, and it) all have the same pronunciation (tā).