If you follow their guidelines you will not get banned. Their ban rate is EXTREMELY low and the only time someone might get banned is when they break the guide lines recommend and sometimes they still get away.
Yes, they are the best bots... MTA has gotten my main 99 mage, paid for 99 fletching, 99 FM, 99 Construction, 99 Herb, and the chins for 89-99 range. The PC bot got my main 90-99 atk, 95-99 str, 45-99 def. I may even get more hours to get 99 prayer taken care of.
I've botted multiple 99's using RiD. Only bot I trust. Their is absolutely no chance of ban if you follow the guidelines, even though most of us break them (some suiciding) and there has still been no bans I've witnessed.
I'm a Forum Moderator over at RiD, and I can say that they are easily the most professionally and undetectable bots you can find in today's market. Every user on that site who is a baby blue color has used over 1,000 hours, and they can all vouch for the undetectability. Combined I'd probably say I've witnessed over 35-40,000 hours just between some members I see often, and none have reported any bans or offenses while following the Guidelines, and less than 20 in the past 3 years have reported bans breaking them. Some say undetectable bots don't exist. Well, these numbers say otherwise.