I don't think that problems are centered around one company or tank. Shipping damages are not the manufacturer's doing it's the shippers problem. I will admit that sometimes a tank arrives and just doesn't work reguardless of who makes it. As for modifications that is up to the person who owns the tank. Some are content to run them as they received them. Some want to spend time and money improveing the looks and the running of the tank. The members of this forum have alot of good advice on doing this. I'm a HL tanker not that I think they are better or worse than other companies is a matter of funds in my case. I enjoy working on the tank doing the mods, painting and then running the tank.