Ethereum is second only to Bitcoin as the most capitalised, and in-demand digital currency. However, challenges remain. Between 2% – 5% of Ethereum transactions on decentralised exchanges fail, due to insufficient gas prices, or slippage. Other issues include the network's inability to scale effectively to meet demand. The scalability challenge is largely due to the innate properties of ETH mining. With 7-15 TPS (transactions per second) compared to Visa at 45,000 TPS, it's clear that much work needs to be done. Possible solutions include state channel, sharpening, and plasma, but in-depth study of these solutions is needed.