no problem with SFH, it is applied on several networks 🙂
it’s quite tricky because you have to work hard on your coverage overlaps between adjacent cells. But this fact is not specific to ALU, it is the general idea behind SFH : frequency planning is easier, but antenna design is much more complex.
But you still have to plan your BCCH frequency though.
blackhole > how many BCCH freq, and how large is your MA list ? how many trx per cell, in average ?