It could be that he has encountered a series or two that refuses to cooperate.
LEXX Season 3, for example, is a multiple-pcg nightmare that none of the single click software solutions seems to be able to handle. It is possible (I am pretty sure, anyhow), to use DVD2One to rip each episode and then use two or three other VOB tools to seam it all back together as one long movie with chapter breaks. Anyhow, that makes DVD2One a bit more useful since you can rip chapters, but it isn't automagic after that.
I only took one swing at it, but Band of Brothers didn't seem to get along with DVD2One - I had more (but not perfect, but acceptable) success with a competing software package that takes 2.5x as long.
I am just trying to say that it is possible to encounter tough TV episode discs and that having more than one tool in the toolbox can be useful.
The tool I NEED is one that can take VOBs and put a simple menu on the top of them. It would be cool to be able to take episodes from different DVDs even, shrink them down, and have something process them into a single DVD with a simplex menu that just starts an episode. I am not suggesting that DVD2One do that, but clearly a product that could do this would work nicely with DVD2One.