Count us as big fans of Amanjiwo as well, and in particular the front row/lower level of suites. There is certainly a little less privacy (almost ground level, upper-level suites can sometimes partially see into courtyard of your suite), but I generally dislike views of rooftops which the upper suites obviously have plenty of. We have stayed in both upper-level and lower-level Borobudur pool suites.

That being said, it is hard to go wrong as Amanjiwo is such a special place it trivializes things such as small differences in accommodation, at least for us