The Flying Sea Turtle ... Hull # 145 has a Natures Head composting toilet.
There is a lot of information out there on composting toilets for RV's, so I won't go into a lot of detail about CT's in general. You might want to google "Gone with the Wynns" and "Composting Toilet" for videos that will provide a lot of good information.
So let me give you my thoughts about the CT and the Oliver Trailer. In our case the LE2.
Using - There is a bit of a learning curve in using a CT in the Ollie. The unit is a bit tall, so you have to be careful getting on and off in the small bathroom. The main thing you want to ensure is that you COMPLETELY SEPARATE solids and liquids. See the video and other sources for info on this.
Loading & Dumping - IMHO... easier than dealing with a black tank dump on the road. For two people on trips less that a few weeks, you wont have to dump and re-charge the solids area. You can leave that till you get home and then LEAVE IT longer until the next trip. The longer it composts the less offensive the dumping job is. In any case, when changing out, I remove the top portion of the toilet and put it in a medium size (the white ones) garbage bag to take it out of the ollie. I do the same with the bottom portion but use a contractor bag for that. This prevents any mess inside the trailer. Then i turn the bottom portion over and dump the contents into the bag and give it a few whacks to dis jar any loose material. The liquids bucket is easy to dump and urine is sterile, so you can dump it just about anywhere. There is some smell when dumping but not when the unit is assembled.
Re-charging - Very simple. Put another white garbage bag into a bucket and put the Sphagnum peat moss in and add water until it is the consistency of dirt. Not too moist or too dry. Then put it back in the base. Not a hard job and not offensive.
Oliver Configuration - When we got this option we made sure that Oliver plumbed the black tank and everything else as if it were the standard RV toilet. That way if we or anyone else wanted to revert to a black tank set up, it is easy. Good for re-sale when the time comes. I have read in the other thread that Oliver refuses to not plumb a black tank in and the reason is that it would be near impossible to convert to a standard toilet if it were not there. I know many people have differing opinions, but for me this is my preference.
As for water conservation.... I would imagine it would conserve more that a standard RV toilet. Probably more important to those spending a lot of time out west.
Happy to answer any other questions, but please limit to the CT and the Oliver.
Safe Travels,
Scotty