A good start but you need a lot of effort:
 
 - Minimum amount: I wrote 0.5 Bitcoin however gives me an error.
 - add button: it does not work.
 - Add new pairs: I can't add any new pairs.
 - No Maximums: what do you mean by this sentence? Do you have enough liquidity?
 - Fees: There are many platforms that give fewer fees than your platform.
 - Most transactions occur within 15 minutes or less: I think you need to review the phrase, it may not be correct.