Just because
some people say they don't like the V5, doesn't mean
each and every one of us thinks the same way. I, personally, like the V5. It's very... awesome.
I wouldn't base my opinions off of what a couple of people say about something. I suggest you buy it and make and opinion of your own.
I think the V5 is better than the V4. It's less needy, you can raise cool families, you don't have to worry about jobs and school, and you don't have to worry about missing Matchmaker times, when you can use the Dating Show anytime you want. I think BanDai did a great job on the V5, and I am looking to buy another one.
So, just do it! Go ahead and buy a V5, and make your own opinions about it. If you don't like it, you can return it. Simple as that.
By the way, I'm not trying to be rude here, those are just my opinions.