Alright

Its nice to have the new things, but what happened to canceling upgrades or demolitions. Furthermore, blueprints, where are they, oh wait theyre gone and that was the true meaning if this building game, even though it was annoying. Also, where are the descriptions of the certain workplace buildings to know what you are actually getting into. All in all, this game could have been either as good or even than the 2nd one because the 3rd was a joke in my opinion.
Also, get rid of the ads.

Rock on 7895 about Build-a-lot 4: Power Source (Full), v1.2