Over 2000 hours played so stuck with it more than many, enjoyed the empire building aspect for some time, until vacation mode* (ability to protect your village from attack and disable all your production while you're away for work, school, sick, etc) was taken away and game became increasingly impossible to prevent complete destruction of all work due to extremely broken / exploited game mechanics. (*You cannot use vacation mode unless you pay to use it -vacation mode is temporary, so you must have an active Coin to use it, and Coins cost RL cash.)
Each new age brings with it changes which further break and increase the damage that can be caused by the game breaking exploits, making it easier and easier for players to lose all spent cash in an instant to any one player using the exploits. Every building, resource, and almost all actions take time, and all of these can be lost from the heavily unbalanced system of pvp.
There is zero positive admin activity and the fact that you can lose all work overnight with zero recourse, I would not recommend spending time, or money, on this game.
It's a pay to win, lose everything instantly (including the money you spent on the game) while you sleep, soulless game that if you spend any length of time on, can be lost within an hour. There is next to zero game balance and all ingame work is destructable.
It is World of Tanks Gold ammo but FAR worse. Card packs are temporary, and buffs are even more so, next to none lasting more than 23 hours. The towns or armies they are used on can be taken out of the game, and there is no lasting aspect of the game except technology, gold, and honor, which leads to only one long-term plan for pvp, which is griefing using the aforementioned broken and easily exploitable ingame mechanics.
If the game was re-balanced to provide permanent cards you bought, but used cool-downs instead of just dissapearing, then this game might be worth TRYING.
The company also provides what appears to be zero real help with support issues so if you run into bugs or harassment, you're on your own. Nearly impossible to get in touch with them (happy to experience the opposite if it happens!).
I do not recommend this game.
If you like this game, or want to like this game, I would recommend Clash of Clans app. It's easily more fun than any one of the seconds in the over 2000 hours I've played Stronghold Kingdoms, and hasn't cost me anything.