I am not very experienced, only used iDVD previously. Takes a little bit to learn, but not too bad. Two things that I consider glitches.
Videos that I edited with MPEG Streamclip or Quicktime 7 and then save without re-encoding do not play right in DVD Maker even though they play perfectly with other software. The video and sound are out of sync. I had to export them, thus re-encode them with either MPEG Streamclip or Quicktime 7 first, which takes a while, but then they work right in DVD Maker.
The second glitch is that when the disk is played on my Bluray player or my DVD player, the munu is not quite right. The highlighted area indicating which item is selected does not line up right with the item. If an image menu item is in the upper part of the screen, the highlighted area covers the item plus a little bit above the item. If an image menu item is in the lower part of the screen, the highlighted area covers the item plus a little bit below the item. If the item is text only, sometimes the highlighted area doen't cover the item at all.