way back in 2010 or 2011 there was the original Merlin Membership which I had and ran for 3 or so years and cost £15 per month for Premieum at the time the member ship worked out at £180 and was roughly £30 more than paying outright for the Premium.
My only gripe would be after 3 years I got a letter (pretty aure I mentioned this in the forum years ago) that the Merlin Membership was being discontinued as Merlin didn't see this as the way forward. They gave me 6 months free admission and then offered a Premium Pass at a reduced rate at the end of that season. (Think it was 2015 or 2014).
You got a welcome gift pack like you did with the a Premium Pass (Lanyard, Freinds Rates, Fast Pass vouchers) but after the first year you didn't get any of these like you do when you renew a normal pass.
When the membership was rolled out on its first run none of the attractions knew about it and the barcode on the membership card was smaller so it wouldn't scan at the entrance. The amount of looks that I got as staff didn't know what it was and I had to explain what a membership was back then.
Also when the Merlin Membership was introduced in the first run I got it on day one. They only offered the membership for about 6 months then suddenly stopped offering it so that kind of locked new customers out of it and they had to pay for standard / Premium upfront.
Is it a good idea? i think it's good they have brought it back due to the monthly out lay. Would I get one? Really thinking about joining again after my current pass expires in February (depending on what the Jan sale prices look like)
Merlin need to take note of the following ;-
1) Breif the Merlin Membership to all attractions and staff and make sure they know it's available (don't fancy explaining to Merlin Attarctions what one of their own products is) This also applies when phoning Merlin as well.
2) Make sure the barcodes on the new cards actually work at the attractions.
3) Don't offer the membership for a few months after launch and then stop offering it so in effect the offer isn't available for long.
4) let us have a renewal pack with the vouchers and lanyard every 12 months on the anniversary of the membership.
If Merlin sort out the above then I'm sure it will run a lot smoother 2nd time around.