[Hilary]

I've been using Worldpay for many years. The functionality is good, it's easy to integrate in general. It's still possible to have problems with them if you're the victim of fraudulent transactions - I once had them sit on my funds for a while because I had two fraudsters inside 6 months. But that's only once in some ten years of usage.

Misc disadvantages of WP you should know about...
- costs more
- charges for refunds
- takes a month to release your funds to your account

The pluses for me are a) the 'insurance' in case Paypal ever freezes my account and b) it protects me against the misapprehension people still have that they can't pay with Paypal unless they have an account there.

I've just been looking into Vbulletin integration (wondering if I can take Amember out of the picture, which currently manages paying membership for me), and found this in the Vbulletin docs:

Note:
WorldPay does NOT support recurring payments.

Not remotely true: Worldpay does support recurring payments, and has done for at least a decade. But if what they're trying to say is Vbulletin doesn't integrate with Worldpay's Futurepay feature and they don't plan to do so, that would be a big nuisance. I've asked them.

Edited to add:
Hm, that quote is from Vb 4 documentation. My current installation of Vb is 3.8, and it says that Worldpay does support recurring subscriptions. So either Vb have removed that functionality for version 4, or their support docs are wrong. Seems more likely that the support docs are wrong, doesn't it? Fingers crossed.