Down jacket: Rab Electron Pro or ME Lightline

I've tried these jackets on in store several times now and can get them for both the same price and will be buying in the new year.

Just wondered if anyone can attest to the quality of any of them? Do they leak down? Lost shape after awhile etc?

I've read reviews but they give me little info other than 'it's comfortable' so I'm keen to hear if anyone here has either and can recommend or condemn either.