I'd like to put my two cents in about these bots. First, for a leveling bot, MMOViper is the best, mostly cuz there's only like two of them lol, but it works great, would've never reached Rank 35 without it (couldn't even make it to rank 20 without getting bored out of my mind lol). You can choose where to go (short or long distances, over the whole map if you want), what to kill, it detects aggro fairly fast, it even revives you and gets you back to grinding when you die, though I recommend fighting mobs where you have almost no chance of dying even if they give low sp since the new patch will wear down your equipment very fast if you die a lot. It can also detect harvesting nodes, so used with moetoy's harvesting bot it can be a fully automated mining and logging bot (though I haven't quite figured it out cuz I'm lazy lol), but he plans to put in his own harvesting bot which should make things run a lot smoother. It's a little hard to setup, but you have to expect that with how comlicated battling in ffxiv is compared to other mmos. Just follow the instructions and you'll eventually get it. It has no free trial so you'll just have to trust me on this one :p. Maybe you will trust this random guy after trying the next bots on my list.
Second, Moetoy's bots work very well, I went from rank 13 to 41 with the fishing bot in a couple of weeks (new patch helped with the increased sp gains). Harvesting bot works great for what it is, just wish it was automated since harvesting is so boring. Crafting bot works great, perfect for turning all the hundreds of fish I caught with the fishing bot into shards overnight and while i was at work (600+ freaking crayfish, at about an average of 90 seconds per craft going with standard at rank 20, would take 15+ hours otherwise). But don't take my word for it, just go to his site and get the free trials and see if you like them or not, if there's one thing you should know, it's to not trust what some random person says on the internet. If I did that, I would've never tried ffxiv and enjoyed it so much (until it became all grinding lol).
I tried out MastrKraftr (lucid's bot) just today, and I have to say it's even better than moetoy's, great as moetoy's is. It's very intelligent, succeeding where I probably would've failed lol, but the best thing is you can run it in the background or even minimized! I'm running it right now while typing this. Great bot, and it's free, so try it before it's not.
Although I haven't tried XIVHelper's bots, I don't think they're very good, for 3 reasons: First, it seems like he goes on every forum and youtube video about ffxiv and advertizes his bots, which makes him seem desperate to get sales, which probably means his bots aren't very good cuz no one's buying them. Second, his bots we're stolen from moetoy, which aside from how bad that is, it shows that he is lazy and the bots probably won't have many features besides the basic bot (I mean he's so lazy that he didn't even change the GUI at all, which is extremely easy even for a beginning programmer). Third, he offers no free trial cuz he doesn't want people to try his bots and see that they are bad, he is offering one of his bots for free, but it seems like a very simple one, and there's no guarantee that the other ones are good even if this one is. But I will gladly try his bots to see how well they run if I could get some sort of free trial of his other bots, but until I get that I'll have to assume he doesn't have enough confidence in his bots, so they must be bad.
All in all, I'd say buy MMOViper if you want a leveling bot that works, although be prepared to get frustrated a few times cuz it is complicated, get lucid's bot if you want crafting asap before you have to pay for it, but I'd also say get all of moetoy's bots too, including the craft bot since I'm fairly sure he'll be improving his bot to compete with lucid's bot. I hope to be able to try xivhelper's bots to see if they're any good, but I don't plan on buying anything that might've been stolen from someone else. I haven't tried any of the other bots out there so I can't comment on them, but these are very good bots, so try other ones if you can get a free trial or they're free, otherwise get these ones, but always try them first.
Hope this helps