Online Fundraising Platform Success Stories

With an eye toward simplifying the online giving process, and reducing the number of clicks and page loads required to complete a donation, I'm curious what online fundraising platforms other organizations have tried and had success with. Most of the platforms that cater to nonprofits (DonationPay, Click & Pledge, etc.) charge a monthly fee in addition to the processing fee and per transaction fee, so I'm wondering specifically about services like Stripe, that are more common in the corporate sector. charity: water has a very nice integration with the Stripe platform.

We are currently use TNEW for all our online transactions, so I'd also be curious to hear from anyone who is using TNEW for ticket/subscription purchases side-by-side with a separate online contribution platform.

Thanks for your insights!