Looks great well done. Re Jakarta I think they are great tiles for the money, I've done several jobs with them, as i supply and fit, I can build in good margin with them looking more expensive and customers invariably think they look great. You have sealed them i assume?
Re wandering cuts I have found that narrower cuts were prone to breaking off so ended up wet-cutting some, perhaps I need to change my big clinker cutting wheel.
Great job again............wife must be delighted.