- many of the features are already available in other projects (Waves, NXT etc.)
False.
Waves, a bad more centralized copy of bitshares exchange, requires gateways to get tokens into the exchange. The end premise of heat is native tokens without need for trusted gateways. The feature attempted is very different. It's also really strange to mention waves with virtually no one using it to bitshares which is #1 most used crypto by number of transactions.
The dex in nxt, xcp, eth are usually for native tokens only, unlike heat/bitshares/waves/blocknet/unity
DIRECT CRYPTO TRADING
Because the HEAT client hosts client side real crypto, integrated to the HEAT blockchain asset exchange through built-in invisible gateway, users can trade cryptocurrencies right from their wallet on p2p orderbooks without going through an exchange. This means that once your trade for ie. BTC/ETH goes through, you can use the BTC or ETH as you do normally. Bye bye withdrawal delays! Welcome multicurrency client and native direct exchange!