Updated: figured it out; upgrades still take too long – The Walking Dead No Man's Land Review

Fun, but time consuming. Characters and weapons/tools they obtain are significantly handicapped in favor of walkers. Just when you think you might get ahead with an upgrade, the difficulty increases lock-step. Jokes on you. Waaaay too hard to collect "gold" which is required to advance characters. Spend money? See comment above - walkers also advance in power/complexity. It's like negotiating with a politician, the metrics keep changing. Still playing, just not as much.
Review by Mdvigil on The Walking Dead No Man's Land.