Actually the Ageod World War One game is now pretty darn good. The first version did not attract me, but the Gold version with the new map and with the latest patch is fun to play and addictive.
I bought Frank Hunter's Guns of August years ago, but never really got into it. It has the feel of a board game like others wrote, but the interface and graphics just don't appeal to me. I must admit though, I haven't put much time into it.
Hubert's game is fun to play and comes really close to a true WW1 atmosphere. The events are definitely interesting to play. The game is definitely worth the money and I have had no regrets purchasing it. I also have the other SC games and I'm playing the Pacific game right now and having a blast.