Experiences and opinions obviously vary on the 5005. Personally, I am very happy with mine for what I need (archiving movies off of DTivo). I did see the "cabbage face" issue with the original FW but that's been fixed in the most recent release from Liteon, which I feel responded in a timely fashion.
And the cabbage face issue only affected playback (live video or DVD). With the new FW, playback now looks fine even for DVDs that I recorded with the old FW which used to show the "cabbage face" issue.
I would definitely recommend upgrading to the current FW release because of the "cabbage face" issue alone - but keep in mind that as robbie-uk points out above, there no indication that the new FW includes any fixes for +RW issues.
What issues are you seeing with +RW exactly?