FP4 has been around for many years in one form or another (since about 1935 according to t'internet) and there's a good reason for that - it is an excellent film. Those beautiful rich landscapes and moody portraits that black and white film excels at are very much what this film is about.
The depth and gradation in tone achievable is fantastic, so long as you get the exposure and developing right ! The film is reasonably tolerant of exposure/development conditions, and badly exposed or developed negatives can often be scanned and rescued.
If you don't plan to develop the film yourself, be warned that professional black and white developing can be expensive, especially if you want the negatives scanned. If you have a scanner that can handle 35mm film, a Paterson tank and £20 of chemicals will last you for dozens of films. Using C41 black and white films (eg XP2, BW400CN) will work out significantly cheaper in the short-term, but these films seem far too contrasty to me- ideal for photojournalism but they cannot match FP4 for richness of tone. If you ever want to try medium format (ie 120 film), FP4plus is also available in this format and home-developing will make even more sense.
At ISO125, this is a good general purpose film, though perhaps not ideal for sports, long telephoto, or indoor with ambient lighting. I'm taking off one star because reasonable quality but less expensive films are available- I still keep buying a high percentage of FP4plus though.