Back in 2011 my all time favorite progressive metal albums were in order Metropolis 2: Scenes from a Memory (Dream Theater), The Human Equation (Ayreon), Room V (Shadow Gallery) and Mabool (Orphaned Land), four jems and wonderful albums in my opinion better than anything else I've heard (and I'm mostly into progressive metal when it comes to rock/metal music), but ORWarriOR blew me away and I actually like it better than Mabool so it took it's place on my "top 4" and took the bronze from Room V.
I find it more melodic and easy to listen to than Mabool, I've read some people needed to listen to it a few times to start liking it but that certainly wasn't my case, I loved it since I heard the upbeat and entertaining opening song (Sapari) up until the end, and 6 months or so after I bought it I still listen to ORWarriOR often without skipping any song!
The weird concept/idea behind the album and the lyrics aren't that good, but I always give more importance to the music (after all you'll LISTEN to the album instead of reading the booklet like a novel) and it surely delivers in that department.
Their Mabool album is also great, but it has more guttural voices doom/death metal style, and it's a bit heavier and more of a metal album, so you might prefer it if you're more into their doom/death stuff (they were more like that in their first years so longtime fans will probably prefer Mabool) but I'm a Dream Theater freak who prefers melodic metal over doom/death so I find ORWarriOR more easy to listen to.
I honestly recommend both albums, but if I had to pick just one I'd go with this one, and I can't wait for them to release their new album next month!!
If you're into progressive metal and like how middle east music sounds then listen to a few songs from ORWarriOR on Youtube, and if you like them (and you probabably will!!) get the album because it's worth every penny.