Personally, I like it a lot, mostly because of the subjective quality of the grain and tonality. I generally develop it in PC-Glycol or XTOL. I don't think I've ever tried it in Rodinal, but as has been said, Rodinal probably isn't the best choice of developer for this film. One caveat: Fomapan's anti-halation characteristics, at least in 35mm, are poor. This isn't an issue for most shots, but if you've got bright highlights (street lights at night, reflective chrome in bright daylight, etc.), they'll have halos. Usually this is bad, but sometimes it's good. One of my favorite personal photos was shot with Fomapan 400 and is, I think, enhanced by the halos around a couple of bright areas.
FWIW, the first link you provided comes up with no photos on my browser. The second shows a photo, but I'm not sure if it's the full frame or a cropped view. I suspect the latter, and if so, the grain certainly looks mushier than what I usually see -- but it could be your scanner isn't focusing correctly. If it's full-frame, then the grain is definitely excessive and extremely mushy, and it looks like the photo as a whole is out of focus. If that second link is to a full-frame photo, it's definitely not representative of what Fomapan 400 does for me.