The probate process is really not that difficult if the deceased’s affairs were uncomplicated. My late MIL had a house, car and bank account so probate was relatively easy. Took about six months from start to finish and cost (I think) about €400. The staff in the Probate Office are excellent to deal with.
It seems like there can be just as much work (if not more) by using a solicitor so why pay for another layer of administration if it doesn’t make your life easier?