new to forum, been lurking a little while, advice please

[cooguyfish]

So I've been lurking here for a little while and gathering information. I bought an 84 190D before I got on here and I have since decided that it's not for me, my wife thinks it is uncomfortable, it's a little beat up, and it's a smidgeon slower than I like. I want to stay with a diesel but wanted to get something a little nicer, I stumbled across an 87 300SDL that is exceedingly nice looking (at least in the pictures) and I might buy it. It is a one owner that was traded into a dealership, with service records and they are asking $1400. The catch is that it has 528K miles on it.

So, should I be scared of this car or no?

secondly, compared to the 190, I know it's a lot bigger and that doesn't bother me, but is it more comfortable, and is it any faster? (I don't need a hot rod just something that doesn't feel like I'm killing it trying to climb a hill).

thanks in advance

-Brandon