Stellar coin is the native coin of stellar network. Stellar transaction speed is very fast which can process 2000 transactions per secound. so, each transactions are confirmed within 5 secounds. For making international payments fastly stellar is best option because it is fully decentralized cryptocurrency.
Stellar ( XLM ) network transaction fees is also very low and as stellar is developed for payment system so, fast transactions and high efficiency makes transaction fees very low.
One of most common problem that almost all users faces in staller is It needs atleast 20 XLM hold in wallet to remain activate the wallet and in payment sector there are many alternatives are available that provides more features than Stellar.
In Short, Stellar ( XLM ) is a decentralised blockchain based payment service platform that provides great transaction speed and and lowest network transaction fees. But we need huld sone XLM to stay activate the wallet.