I've always been disappointed that Delta's aircraft seat maps have so little information. For example, they do not display the location of the lavatories, galleys, and closets. This is important to me when choosing a seat. For example, on the B767-400, I once avoided the exit row at door 3 because it looked like there was a lav in front of it on the Delta seatmap, but as it turned out it is just a wall and these are great seats. Delta is the only airline to have so little information on their seatmaps.

I've noticed that, within the last month, Seatguru has changed their seat maps. No longer using the exact image that appears on each individual website, the creator has made a seatmap for each aircraft, using a consistent style. These still accurately display the lavatory/galley/closet placement for the other airlines, but he had to guess (presumably) for Delta since they don't show these on their online seatmaps.

Among the many errors:
=On the 737-800, there are two lavatories in the rear of the aircraft, not just one.
=On the Song 757, the midship lavatory is on the starboard side, directly in front of door 2R. On the opposite side, in front of door 2L, there is a closet, not a galley.
=On the 767-300ER international, there are two coach lavatories midship directly behind the BusinessElite cabin, roughly where the seatguru map shows 20-21 CDE to be.
=On the 767-300 domestic, there is only one First Class lavatory. The lavatory between door 1L and 1AB, shown on SeatGuru, does not exist. In stead, there is a small wall.
=On the 767-300 domestic, there are only two lavatories between the two economy class cabin, one on each side of the aircraft. SeatGuru shows three total, with two on the port side.
=On the 757, there is a mid-cabin lavatory between First Class and coach that is not shown on SeatGuru.

It is disappointing that Delta does not give us better seatmaps (and when they first launched Delta-air.com way back when, the seat maps were much better). But SeatGuru's attempts to fill in the blanks are very inaccurate. Frankly, I liked SeatGuru better when they just colored in the seatmaps already provided by the airlines.