I played Ballybunion-Old recently.
The photos highlighted in the above weblink are a nice visual summary but here are a few additional comments.
The greens themselves appear to have been relaid and knitted together very well. At the moment they are a little hollow sounding to the bounce of a ball and the grass is very long and hairy...they are probably running at about 6 on the stimp, maybe even slower. They do however, putt beautifully true and I'm sure that as the season progresses the way they putt will be impressive.
The green surrounds are also very long and hairy..forget about trying to putt from the fringe let alone from 20 yrs away....it's aerial game time for the moment, although hopefully not for too long. The re-bunkering is very neat and tidy.
Lots of marram has indeed been planted, especially on the holes around the Tuck Shop part of the course.
Many tee-to-green and green-to-next-tee pathways seem to have been reworked and these are extremely green and lush.......but do you really need paths that are irrigated by the sprinkler sysytem?
The new 7th green is now very adjacent to the cliff edge and is angled very differently from before. There is a distinct hollow running at an angle across the front of the green. It would seem that any shot not reaching the putting surface will be caught by the hollow and swept towards the cliff edge. Approach shots bouncing to the right may well bounce over the cliff edge. Those rolling however, will most likely trickle into a patch of semi-rough that that has been left near the cliff edge no doubt for such a purpose. I suspect this area will over time contain a great many divot marks. The former 7th winter green situated more inland has been abandoned and partly dug up.
The revised 8th is a cracking short par-3 with an extremely narrow green, especially the front/middle section. Do not hit into the second left hand bunker or you'll need to be pretty lucky (or very skilled) to keep your bunker shot on the green and out of the hollow to the right, which is very deep.
Atb