The only thing I dislike about this product are that it does not have all of my favorite features such as room sizing or equipment selection (that would be nice!) but other than those minor things its great! This program makes designing systems very easy especially if there isn't much experience with building them out in AutoCAD/AutoPLANNER etc.. There aren’t many programs like these anymore so i recommend trying one before buying another because they tend go away quickly once people find something better!! If anyone needs help figuring anything else while working here just ask me :) We use PLandoid at work every day when we're looking into new projects whether residential homes being built up townhouses ect... They also make some pretty cool custom thermostats which can really save money by changing how often our units run vs needing more expensive models made specifically towards commercial buildings.