I think that the Develop module works reasonably well. That is also where I spend most of my time. Print also does what it is supposed to, I guess.
I think that the search and cataloging features of Lightroom are surprisingly weak. I mean, that is supposed to be one of the selling points of this kind of software. So why is it so unintuitive (introducing non-familiar UI conventions) and limited? Why are there no search functions based on image analysis (face detection, color content, in-focus estimation,…)? Why is not the tagging system better organized (nice hierachical tags? default tags/cloud-based auto-complete?) Ideally, I want this kind of program to keep track of every way in which I have ever accessed my image collection (search, collections etc) in a manner that is better than I could ever think of myself. That should be the main benefit of database-driven collection as opposed to just moving the files in a file folder system.
A friend of mine claims that Photoshop Elements (!) has search functions surpassing LR, at least in some areas. Is this really true?
The Book and Web modules are places I avoid spending time (I find that MS Paint gives me better flexibility in arranging multiple images before print, too bad that one loose color management that way). The Map module I haven't had a reason to test (due to lack of GPS). The Slideshow thingy works, although generating the show is painfully slow.
At least it is possible to switch to fullscreen with a simple keystroke now. This indicates to me that Adobe actually listens.