VOOM performance is very situation dependent. Sometimes it could be unusable and other times it’s as good as at home but most of the time it’s somewhere in between.
Until it doesn’t - you are very lucky if it has worked on all the ships/sailings you were on. It seems to even vary by person/device on the same sailing.
Biker, who tries this on every sailing and has has had minimal success this year - currently on Enchantment and it doesn’t work. It worked briefly on Voyager two months ago.
Ships which don’t have a CL have a Suite Lounge instead where D+ are not allowed. You can read some Quantum reviews early next Alaska season to see if D+ can access her CL.
Enchantment is the outlier, but, yea, some folks have been able to book MTD earlier than the 6:30 norm on other ships. A B2B couple on board now were asked if they would like to “normalize” their existing 6:00 PM MTD reservations for 6:30 on the second sailing— they declined.
As mentioned, that confuses some folks but that’s how interporting works - two different “home” ports with 7 days from each. Some get on in one port and some get on at the other - it’s kinda the norm in Europe for other lines.
The CL concierge on Enchantment and the welcome letter says that on ships with a CL, D+ have their access back as the rules say they should. According to the concierge even the number of D+ on board which used to determine access has been removed. 218 D+ on current sailing of Enchantment (and 32 pins). The answer will likely be very YMMV.
Dry docks, even for the Amped Oasis, seem to have no affect on fare pricing. Don’t look for any meaningful upgrades on any ship dry dock for the foreseeable future.
RCI is testing the limits of folks’ belief that inflation and inflated pricing is an on going thing.