If it's an important matter pay more. And remember that the principal offering of a lawyer is his or her time. Usually the very best value is in the first half hour because that is when your attorney defines the issue, the legal context - usually without cost. Withholding important details of your case is truly unwise, and cripples your attorney. Don't confuse this with charm.
Some good lawyers have no charm, and vice versa.
Make sure your lawyer is happy representing you. And make sure he's getting paid. Every field is now highly specialized. You can do a lot to find out how experienced an attorney is. First ask her directly how many cases like yours she has handled.