very much so.... also I'd much rather know the maker of the bot i'm using. Makes me feel alot more comfortable knowing whats behind the scene... I've visited Slothmo in person and I can tell you this, hes one smart guy. I dont doubt him for a second. Mistakes are fixed very quickly and new content added that no other bots have. Also... L2.NET was the first bot to connect to servers IG without client hooks, making it very hard to detect client side. If not possible at all. Unless faulty packets were detected.... but then again anything unknown to IG gets passed on to the client, L2.NET will not touch it.
Overall, if you are worried about detection... L2.net will have a much better chance to go "under the radar" on the next bans. OOG on retail is unsafe because GG packets haven't been cracked... this is the case on l2Divine.... and most likely Walker. Most people dont even know that.
If you are wanting to go into the programming wold, or just learning about it. L2.net is also a nice baby step. Its not complete programming, but its a heck of a good step into the programming world. Learning c# is a piece of cake for me now.