I just did this not long ago to take advantage of a $1200 sign up bonus at Fidelity. I believe if you transfer between 500k-$999,999 its $1200 bonus. It was a very easy process. Almost everything was done on Fidelity.com, my two accounts transferred in 1 week, the cost basis transferred on our taxable account and the bonus was deposited in about 4 weeks. If for some reason your account type can't be opened on their website (like a trust account) or if Scottrade requires a transfer form rather than accepting electronic submission, Fidelity will prefill and overnight the transfer form and include a prepaid return overnight envelope. I had a representative walk me through everything. He was very easy to deal with and also offered to reimburse any close out fees from the firm i transferred from. So yes, in my opinion it's worth it. I spent less than an hour to make $1200 and there was zero paperwork for me.
It's not only the $1200 that I liked. Fidelity also has a debit card that reimburses all ATM fees with no min balance or annual fees, similar to the Schwab card that everyone likes. If you trade stocks or ETFs there's many ETF's you can trade without a commission or if you trade stocks the commission is only $4.95. The retirement planning tool is very good as well. If you enter a detailed budget, it assumes a different rate of inflation for different types of expenses like 7% annual rate for health care vs 2.5% for everything else. This can probably be done with other retirement planning calculators but it's nice to have good retirement planning calculator at the company you invest with.
If you want, i can give you the phone number and extension of the representative that helped me. He didn't try to sell me anything. He did ask me if I was self directed or looking for help with managing the accounts but once I told him self directed, he just walked me through everything online and even called me when the assets transferred. He also gave me a tour of the website and the retirement planner. He gave me his direct number and email address. I already emailed him once to ask a question about something and he got back to me within a couple hours. I believe the GoCurryCracker.com guy has his accounts at Fidelity.