In some of the articles I've read, and some of the podcasts I've heard, people have been saying they need to work around a number of bugs existing in Grails.
As a beginner Grails developer, how will I know what those bugs are ( so that I wouldn't have to waste time researching them )? Are they listed somewhere?
Search for the prhase "known bugs" to get things like this: http://grail.sourceforge.net/info/oldbugs.html
The biggest problem I have had with Grails is every time I upgraded to a new version, it seems to break things that were previously working. If you are using extra plugins, you should be even more careful. Most of these problems are pretty minor ones and you can easily find a workaround once you know whats going on. If you are considering Grails, be ready to spend 20% of the time fighting with Grails in exchange for the higher productivity it provides.