Hi Nicky,
I went through this recently and settled on the Brother 1034D based on reviews, advice given here and budget. I’d come to the conclusion that I couldn’t find anything much better at that price point. I’m very happy with it, although it is my first serger and I don’t have anything to compare it to. I haven’t tried a rolled hem yet, but the gathering foot has served me well so far. Basic serging has been a breeze, although I often find that my tension settings differ from those given in the instruction manual. But after the initial fiddling the results have been great. I can’t say how well it will hold up (maybe someone else will pipe in here) given that I’m running it quite often, but at the price I wouldn’t be too heart broken if I had to replace it in a couple of years with something more ‘serious’. But, honestly, I can’t see that happening soon. So far it’s been a reliable little machine.
Hope that helps!
Wendy