Really, I shouldn't have bought the 2 games at the same time, knowing that they were closely related to each other. This one has the same terrible kind of GUI and user-friendliness + is additionally totally unplayable because the map scrolls way too fast.
I bought Constructor and Mob Rules during a promo week-end without much thinking because of the reviews (almost only positive ones, how unbiased...) and because I had already bought a whole Kalypso pack a while ago which was great (Tropico, Commandos...), but know I'll really think twice next time I plan buying an oldie I don't know...
My advice if you still want to try them: buy only one first so you can see if the gameplay suits you.