Wipster vs frame.io - what do you use for collaborating and sharing?

[Spartacus]

I hope this threat doesn't get buried in this sub forum, but it seems to be the right place.
I consider this topic so important for someone earning money from producing video,
but there isn't that much current info out there (unlike debates about not yet released cameras' performance...).

I work with three editors, one in my office, two externals.
Collaboration is done via email, phone, vimeo, dropbox, wistia, Skype, internal cloud.
So stuff is basically all over the place.
I started using frame.io with the editor in my office (because of its FCX integration) and I like it so far.
The integration lets you export directly from inside FCX to frame.io, which right now I think isn't possible with Wipster.
Everything works out as described, the main drawback for me being, I want to give the client the same features as a logged-in member has,
without having them to sign up for sth.
Also the preview link I can send to someone not logged-in doesn't get encoded that well and looks low-res, something that just doesn't go well with visual media.
As I understand, Wipster offers all of that.

Currently I still use the free version of frame.io for evaluation, but I want to go "pro" soon and want to make sure, I sign up for the best there is ("best" bing debatable, but still understandable I hope).

So who has some experience to share, maybe even compare the two (or another tool)?

 

[alohype]

Consider Sony's CI platform as well

 

[Spartacus]

Thanks!
I read about it about in the provideocoalition roundup, but to be honest dismissed it, since I don't use any Sony products.
Stupid how far some brand associated thinking can go

It looks nice as far as I can tell from the tour and it seems the differences between the various offerings are less obvious than I thought.
But besides wanting to know what else is out there (which the above roundup gives good info) I'm really interested
in why people ended up using one service rather than the other.
Which features you really like, which you really miss.
How easy it was to get others to work with it - especially on the client side.

The Sony service seems to let you export an XML with markers of the changes.
This would be the final step of getting all the "collaboration" back into the edit system.
With frame.io my editor has to toggle between FCX and frame.io, moving to the changes by comparing timecodes.
Does this work reliable and frame accurate? No hiccups?