I've bulk aged for anywhere between 3 - 18 months (the more recent batches are the longer timeframes), and bottle aged for up to 10 years. My wife and I celebrated our 10th anniversary this year and opened the last bottle of the WineKitz Someillier Reserve I had made for our reception (bulk aged...
Currently in my cellar, I've got WE Private Reserve Amarone, RJS En Primeur Amarone, and have a Vintner's Cellar Platinum Amarone bulk aging. To date, I would lean heavily in the direction of RJS; although I have strong hopes for the Vintner's Cellar batch.