It can be expensive. Legal fees, executor fees and other costs must be paid before your assets can be fully distributed to your heirs. If you own property in other states, your family could face multiple probates, each one according to the laws in that state. These costs can vary widely; it would be a good idea to find out what they are now.
It takes time, usually nine months to two years, but often longer. During part of this time, assets are usually frozen so an accurate inventory can be taken. Nothing can be distributed or sold without court and/or executor approval. If your family needs money to live on, they must request a living allowance, which may be denied.
Your family has no privacy. Probate is a public process, so any “interested party” can see what you owned, whom you owed, who will receive your assets and when they will receive them. The process “invites” disgruntled heirs to contest your will and can expose your family to unscrupulous solicitors.
Your family has no control. The probate process determines how much it will cost, how long it will take, and what information is made public.