My thoughts on the oasis ring are:
a) They are pricey, but for this event there was not a good plan B.
b) Easy to use and a good size, but it takes a lot of stems. I knew this going in.
c) Water retention was not a problem, today, but I see where it could be.
d) Narrow, so you have to watch the stem length.
e) I don't like the texture of the oasis. It's more fragile and maybe crumbly? I don't think it's as secure.
f) In delivering them and setting them up, you do not want to touch them to the table, or come in contact with the lines, messy. I am thinking that they could be mishandled depending on who sets up your weddings. This issue also came in my mind about their delicate tendency, and I don't think they will allow much rough handling.
Wanting to cut down on greening and seeing the oasis, I used plumosa and hot pink bullion(the real thin, almost wispy wire). Not an over abundance of either as I wanted to keep the insertions easy. I felt this lent my oasis some support, and helped keep the flowers in place a bit. That was not my original intent, but after the fact I liked this method well enough to use it again and the wire is decorative if you see it. I also used # 9 florasatin (yes the plastic-y waterproof stuff) and lined the inside of my ring using some straight pins to secure it. Worked like a charm, looked pretty through the hurricane too. I would do that again too, it gave a finished look, and kept in some moisture, and I didn't have to worry about smeared glass or shedding greens, this hurricane was a close fit.
Overall the product does its job, but a new improved version could be invented. I think the concept that CHR mentions is the ticket, and I have done a variation of that for other similar jobs. This one just fit the rings better, with time constraints and help. My nagging small dilike is for the texture and grip of the ring. For the cost,
I am mildly disappointed. JMO.