Yes, using bot to hunt specific number will be helpful therefore we don't need to watch our rolled numbers all the time. Tbh, hitting 77.77 alone won't be so hard even though it will depend on luck.
In my time gambling with prime dice it was really difficult to touch those double figures even before there was a jackpot associated with it. If you are specifically looking for 77.77 sure you can try your luck using a bot and you needed to have a big balance to try for a long time. 
I do respect those who have made Seuntjies DiceBot because I can see that many gamblers enjoy using it, but I personally don't use it myself. Gambling for me is an entertainment, not a hard work to make money with and that's why I don't need a bot to do it for me. I prefer manual betting when you can clearly see the outcome of every single bet, while reading the amazing PD chat, chatting with friends, participating in trivias, challenges and so on. )
It is true that manual betting is the true enjoyable experience but using bot every now and then is also fun,to be frank i won the most from the site using bot and not by manual play and i lost the most too with bot and a couple of times i won big because i gave the wrong multiplication order than i was planning to roll with another value ,those were just lucky days . 