[cpncrunch]

I've been using various online credit card processors since 1995, and my experiences are slightly different. Worldpay is absolutely excellent - their service is amazing, and their support is absolutely top-notch. Definitely the best solution if you're in the UK.

I'm not sure what you're doing with paypal, but there haven't been any API changes that have affected us in the 7 years we've been using them. In fact I just looked at our paypal code, and it hasn't really changed at all since 2007.

[robotmay]

I've had so many issues with PayPal that it's just unreal. First up, they have something like 10 separate API interfaces for taking payments. Second, the documentation is -terrible-.

We implemented one of the APIs (can't remember the name, it was something stupid at least) recently, and half way through our implementation the parameters we received back changed name for no apparent reason, and the PayPal sandbox was entirely changed; this resulted in our account becoming broken, constant errors where code was previously working, and it was never resolved.

WorldPay is incredibly outdated, underfeatured, and rarely improved. Their support is pretty decent, however.

With Stripe and Paymill now available, I don't see any reason why people should continue to use what we've been struggling by on for the past few years. They're so much better that I can't even really draw a comparison.

[cpncrunch]

I just had a look at Stripe, and it does seem like a good service. If I was building a new site I'd probably consider it. The annoying thing about paypal is that it doesn't allow you to change subscriptions.