Job dilema

[Torres10]

I could do with some advice.
I have a job, pays well, great work-life balance, 20 mins from home, but don't enjoy the work or my boss
Sort of fell into an interview for a well known company, thought I should go along and see as agency called and thought I'd be a good fit. Not sure on role, but I think better than current one, commute of 35 minutes, and they say they are open to some flexibility, but proof is in pudding so I don't yet know how flexible of course. I was offered and verbally accepted the role but they have been messing around with getting paperwork out, giving me time to procrastinate, and now I'm not as sure..
I have seen another role advertised for completely different company for which I am not ideally suited, but that really interests me. Of course, they aren't even interviewing until mid July anyway and I may not get an a look in at all, so might just be pie in the sky. I think the fact this is something that interests me, is making me question accepting the other role, which I am struggling to get excited about...
Would you back out of accepted role, obviously annoying company, recruiter etc on the off chance something better might come off!?

If they really wanted to snap you up, they shouldn't be messing around.

Do you have any guarantees that you will get the job you have been offered?

I work in recruitment. I would rather you back out not than leave after 2 months. If your recruiter is halfway decent though you should be able to talk things through and get the delays etc explained

I moved jobs when I wasn't excited about new role/co and it didn't work out. I wished I'd listened to my instinct.

It doesn't sound (from yr post) that this new job will actually be more interesting/enjoyable which is one of the reasons you don't like your current role.

I would stay put and focus on finding a new job that excites you/offers what you are looking for....