Unwelcome is a modern slab of melodic death metal at its finest that's also flashier than most of its peers. That being said, the album is also constantly a middle-finger to anyone who takes the genre a tad too seriously. While it's not as earth-shattering as some of their earlier material, it shows Arsis settling into a more-than-deserved comfort zone, seamlessly incorporating sounds from their entire catalog. Also, the Corey Hart cover rules.
Compared to most bands within the same genre, Arsis` musicianship is head and shoulders above. They wield their instruments with an uncanny technical prowess. These traits, combined with some of their best songwriting, best riff writing, the most interesting drumming to date, and face-melting solos is a concoction for an excellent record. Their second best full-length in my opinion.