Fink-Roselieve Co. Cut-Film Developing Tank?

I'm looking to processing 4x5. There are several of these tanks on ebay.
Are they any good?
Thanks in advance,
Brad

I have one that came with my Solar enlarger. It's definitely better than the much maligned Yankee, though it is not impossible to get edge effects. I do find it a little hard to load, but mine is missing the guides. I'm fairly certain that the negative used for the cyanotype in my gallery was done with it.

Got mine at a camera show for next-to-nothing. I've never seen the loading guides. I made 4"x7" cardstock sheets that I slip into the film slots with the lights on. The cardstock sheets stick out beyond the slots by 2" or so. Then I load each sheet by sliding it along the card stock until completely seated. Then I remove that one card and load the next sheet against the next cardstock sheet. ( I hope I've described this adequately, if not I can post a pic)

It seems to use more chemistry than absolutely needed for development, but my negatives have always been very uniform.

You can't invert the tank to agitate, I just rock it from side-to-side. I use it in the dark, remove the lid for filling and draining to speed things up.

John