It's a lot easier than WGT but only if the people know the mechanics and/or can follow the instructions. Due to it being only v14 mobs die SUPEReasily, good dps melts them in like 2-3 hits, bosses go down crazy fast as well. This actually allows you to ignore most mechanics, however there're...environmental mechanics on each round that you cannot ignore, such as insta-killing poison aoe circles on Arena 3 for example. Normal DSA should be crazy easy right now, vet I actually consider kinda fun though it could certainly use some buff(and v16 drops).
It is quite long however, even with great group you're unlikely to run it(vet version at least) in <hour(especially considering it's your first run, from what I understand). That and lack of meaningful(read:v16) rewards does make people reluctant to run it. If I were you I'd ask friends or guildies, make sure to mention it's your first run and see if anyone wants to take you on your first run. If you're NA PC I can run with you myself, I don't mind new people and I like DSA
Edit: far as the "hassle" goes, I'd say it's definitely worth running at least once. It's great fun and the mechanics are sure to make your first run interesting;) Imho it's probably the most interesting group(4-man) content they ever made.