I was there a week and a half ago. Before that I did my mapping project for divemaster at the new site at Martha's.
Fred is working on gradually improving the new site, but it takes time. If you recall the old entrance was immediately next to the railroad tracks. The current entrance is right next to the old one, opposite it from the tracks. Fred had created a looping driveway with several picnic tables and pulloffs. The ground is covered with mulch and can get a little messy / muddy after a rain. He has his compressor on site so you can get air fills. There's a port-a-potty, but I've not detected any good place to change other than behind a tree. Fred intends to create some improved tables that are more diver friendly at heights and designs that make it easier to get your gear on.
There is a ramp that leads down to a dry platform and then step onto a platform that is about 4 feet deep. The area immediately below and around that had bottom at 25-28 feet. About 50 feet out from that is a training platform partially supported by barrel floats. Platform is at about 18 feet.
Fred had been know to post here. Maybe he'll add some comments.
Temps in the first 20 feet or so have been like bathwater, then cool to about 40 feet after which it gets brutally, painfully cold for most wetsuit divers. (O.K. I'm a temp wimp)
The new location puts you much closer to the tour bus. (Sorry, I can't remember the distance.) The sunken sailboat and cabin cruiser are about 300 ft from the training platform. The buildings which used to be so close to the old entry are a pretty good swim now.
You likely won't find any spot deeper than 50 feet unless you bring a jackhammer and create one.
The algae is in full bloom so vis is pretty bad. I was floating on the surface watching one of our instructors guide students in CESA's from just below the training platform and I would have had no clue they were down there except for bubbles. Probably did not see any hint of them till they got to the 12 or 15 foot level.
The bluegill have been especially pesky this year. I wear a hood for sunscreen and to keep my ears from being nibbled more than I do for warmth.
I have to say I have looked wistfully over at the old pavilion and parking area as I have made that long swim over to the crusher and shaker houses.