A custom bot just for you is best (HAF Section) most of these public bots are become less effective as Twitter catches on..
I am sorry, but you do not know what you are talking about.
1) the cost is A LOT more than a public bot for feature parity.
2) Getting a freelancer is like roulette a gamble, maybe they can code, but do they know about automation coding?
3) public bots have been developed and improved after testing from 100s / 1000s of users. All those edge cases, those little things that took weeks of debugging to find out what twitter (or any other site is doing) that cause issues is learned knowledge a freelancer won't have
4) a freelance bot is tested by you, after you have paid you can enjoy "discussing" whether what you consider a bug and the dev thinks is a feature should be paid for or should be done for free
5) Then twitter changes something on the site and know your program doesn't work, lets hope you maintained a good relationship with the dev so they don't go cold and you are back to square one
6) I hope the dev knew about all the possible responses that can come from your requests, blocks, slow downs, warnings, otherwise they will hammer away at the servers unware until your account is banned.
And the view that public bots are footprinted and a freelancer bot is nonsense. public bot developers know their domain better than someone who hasn't worked with it day in day out. I will guarantee you, I know twitter requests inside and out better than any freelancer who hasn't fought with the requests for years. A properly coded bot, will replicate the browser well, if it didn't all customer accounts will fail and there will be a lot of noise about this, killing the company or eliciting rapid fixes and updates, there will be a history you can search, whether on BHW or other botting type forums. Not so for a freelancer. A public bot makes money per sale, a freelancer per project. The freelancer wants to finish the program as quick as possible so they get maximum $$ per hour of work. The public bot developer/s have maximum incentive to make the best, undetectable bot they can, as the better the bot, the better the reputation the more sales. A freelancer bot is a one off, the incentive is to get it done quickly and get paid, not make it the best they can.