I like it, but its a long course. Especially if you opt to transfer into b eng b bus dip eng prac for the internships which makes it 6 years assuming you stay full time the whole course and follow the plan.
From comparing the first year business and engineering subjects the business ones have a lot more spoon feeding and as a whole are just easier, but there is the odd Eng subject that everyone seems to do well in.
Unfortunately the first business subject you will do will be a terrible bludge subject called IBP which will have some things in common with an engineering subject you've already done. Even straight business students don't like that subject so don't worry about it.
I also know people doing Eng/Bus who had a bit of difficulty with some of the first year business subjects like accounting, so just because business isnt as demanding its not necessarily a guarantee you'll do well in it.
As opposed to a straight business course, you'll have one major in business and obviously your major (and speciality/sub major) in Engineering.
5/8 first year eng subjects are core subjects so you'll be doing them with people in other majors, and people doing just engineering or some other combined course. Eventually you'll all have mostly different subjects and have very few classes together. That's typical in engineering though as people do their internships at different times, go part time, fail subjects etc.
Can't talk about any major specific subjects as I only really know ICT and you didn't mention what major you wanted to study.
Also, why do you want to do business? I originally planned to do management as a major, decided against that and am now thinking of doing it again. Keep changing what I want to do as my major because I didn't put too much thought into that before.
If you want to work in a business field, consider whether its worth doing engineering but if you want to be an engineer keep in mind that doing an MBA or MEM (engineering management) part time after you've been working for a while might be the better idea.