We are almost at the end of a development cycle for WTP. The latest integration build is availlable for download here. This build, unless major issues discovered, will be the official 1.5 release and will be part of the eclipse Calisto release.
This WTP release is probably the best quality release produced so far, WTP 1.0 users will not notice many new features but a fairly good quality. Of course, I do not mean it is without problems but you should be able to get around those you encounter easily. And if you wish to have those fixed please open a bug report and better yet provide a patch so that they are fixed in our next relase 1.5.1