Sounds good to me! Better than 99% of the rest of "popular" music being produced these days. If they can still produce great songs some 50 years after starting out, then more power to 'em.
And who cares if it's more than 4 minutes long? A lot of the Stones songs were longer than 4 minutes. Hell, a lot of the songs on the Hideout Comp Series are longer than 4 minutes.