Iron Maiden are one of the pioneering heavy metal bands that came out of England in the late '70s/early '80s and became to be referred to as the New Wave Of British Heavy Metal (NWOBHM). They are by far the most successful of this group of bands (other NWOBHM bands include Def Leppard, Saxon and Samson).
Their first album, self-titled Iron Maiden was released in 1980 and they have produced a steady stream of both studio and live albums ever since.
The Final Frontier released on 2010. It peaked at No. 1 in 28 different countries and has received widespread critical acclaim.
Kerrang! called it "a record that'll still bowl you over in a decade's time" and Metal Hammer deemed it "a demanding album, but one that most Maiden fans are going to absolutely adore."
These two reviews sum it up pretty well I'd say. I've been listening to Iron Maiden for nearly 30 years and this for me is one of their best. It doesn't quite match the raw, powerful 'golden era' albums such as Number Of The Beast and Powerslave, but it has a fresh progressive voice that blends nicely with the classic Maiden sound.