Tough one, heard both good and bad things about the mags over on "Gremlins in the Garage" some of those guys are involved with the mags.
My best advise would be to try to get hold of an older issue of each and check the contents careful, sorry, can't help more the mags are not available over here.
Personally, I try to stay away from subscriptions as most mags have a lot of contents/issues that I am not interested in and only buy the mags with articles I am after.
Replicant(it is a Mook actually) being the one exception as it is more of a catalog of kits that were released in the last quarter and has generic building articles and interviews.