It is great but too easy of a game. Your wrist will be dead after 30 levels.
There is a way to alleviate the wrist stress and that is to invest all of your converted men into magicians and then once you have about 300 in your mage tower start converting like crazy for archers. Soon once you have over 500 archers you will realize that you don't even have to do anything. I am at level 189 with 1501 in archers, repairers, and magicians. I just let it play itself and sit back and watch the chaos. It is funny. The catapults do cause trouble but with 1501 in repairers my building repairs itself faster than the catapults can fire. I have had 8 catapults at once fire at my castle and it healed itself completely before they fired again.