The Luna and SOL seem to produce decompression curves that are more "bend and mend" (shallower initial stops and longer shallow stops) than what you see with Buhlman GF or VPM-B profiles. Your best bet would be a decompression planner that uses gradient factors, then play with the hi and low factors to mimic the Luna.
I like what the Luna offers in terms of a great electronic compass, book marking, the ability to load stick maps, etc, and the profiles were generally fine for nitrox deco diving in the 100-130 ft range, needing only a few more minutes to clear than a computer running Bulman GFs in the 30/85 range or VPM-B at +2 conservatism. However, Uwatec's Trimix upgrade is totally non workable as the profiles are incredibly conservative and won't be remotely compatible with another computer or with other non Luna computers other divers on the team may have.
In short, I still have it, but it's mostly a back up to two Shearwater Predators and if I use it on a trimix dive, it's running in gauge mode.
