I've been looking to buy waves with BTC but all the websites i've found so far have mixed reviews so i'm not sure if i should use them..
Please let me know what website you use for buying and selling altcoins
Try Bittrex if you intend to buy Waves with your BTC, or use their Chrome wallet instead and exchange your BTC there to Waves. There is a small fee of 0.003 WAV if you want to do it using their lite client. In addition to Bittrex, you can also purchase Waves coin at YoBit, HitBTC, Changelly, Exmo, Livecoin, and Cryptopia. Their difference in prices is not that noticeable, so whichever exchange site you choose above, the rate is almost the same.