Off the Solstice a couple of weeks ago, was in a sky suite. Luminae food & service was very good, sommelier was just OK. Didn't find Michael's Club location all that useful, was spoiled by Apex Retreat last April. Other than having a better sommelier on Apex, Luminae experience was not "downgraded" in any way. Retreat is definitely a step up on Edge class due to location of the lounge and the Retreat sundeck (compared to Solstice class).