I’ll try to answer this as I used Zygor and switched to Dugi a while back and have been using it since then (1-2 months) and have been super pleased with it even with a few shortcomings.
Zygor’s guide is really really grindy. When they first released their guide it had a lot of running around between zones and people didn’t like this so they switch it up to a stay in one zone for x number of levels. This introduced a lot of grind and some people hated it and some people liked it. I personally preferred it without the grind. I feel like Dugi is more like this and has me do a lot of traveling and while sometimes a few levels seem really slow (3 or 4 hours) other will zip right by (2 hours) and I’m level 32 now. I think this has to do with the amount of travel Dugi has you doing.
Zygor has a lot of “Grind the rest of the level out” steps. Dugi doesn’t have this and I have yet to fall behind, all I do is follow the guide and have been running the level appropriate dungeons once.
+ I also like the fact that with dugi I can see a list of all the steps. Zygor doesn’t feature this (or didn’t when I used it)… You had to step through all the steps which was super annoying.
– I use Dugi in conjunction with Questie because sometimes I think where it’s showing drops aren’t the most optimal location. I think Zygor would have this issue to.
+/- I actually use Joanna’s guide free portion for 1-12. While I think there pretty close, I feel like Joanna’s guide has a little bit better pathing. I can make it to level 12 in just under 3 hours with Joanna. Dugi it took me about 4 and half the first time. I was reading Joanna’s site though and on it he says he’s friends with Dugi and mention him by name.
As for this “Suprise” I’m a little disappointed. I’m 99% sure it’s going to be profession guides since Zygor is now rolling out profession guides. Personally I think profession guides are trash as you can get this information free online. I’d much rather see dungeon guides or at least pathing to get all the different quest for dungeons.
Also Dugi and/or the Team seem pretty responsive and honest in their answer’s on the forum. I can’t say the same for Zygor’s Team on their forums. It seems like their a little more combative to the users when there’s an issue or complaint.
Anyways I recommend Dugi over zygor overwhelmingly.