Yes I have and reality is still very much as it was when the original ELL was running. But! That's mainly because the preview service running now is, for those coming from Forest Hill for Canary Wharf, operating in exactly the same circumstances as it used to be.

The theory is that once May 23 comes around, the overground train timetabling is changed and the ELL is running fully, some people will now choose to commute avoiding London Bridge where previously they couldn't, so there will be a reduction of pressure at London Bridge on the east bound Jubilee line, leaving more chance of there being room on trains at Canada Water.

But a theory it remains until the morning rush hour on May 24th! Another issue is the Jubilee line was supposed to be running with it's new signalling system by the time the ELL started up again allowing more frequent trains but that's not going to be finished until October at the earliest now.

Personally I'm still planning to use London Bridge in the morning and Canada Water in the evening because I fully expect Canada Water to remain a bottle neck east bound. At least I'll be able to see if I'm wrong that way without being stuck on a platform.