No problems. Only solutions!
I've started testing the waters with 20i after many years as a reseller with another established UK hosting provider and so far my experience has been pretty outstanding. The level of service has been far superior and with many extra bells and whistles included. The control panel reseller interface remains familiar to me so there were no nasty surprises there and I've found it to be a lot less complicated and more intuitive than I've been used to. Migrating an entire Wordpress website & database was done in just a few clicks unlike the world of pain I anticipated. Like John Lennon once said: "There's no problem... only solutions".