Poor in what sense of the word? Because if you mean poor in the league tables, then you could do a lot worse. Brunel offers excellent sports facilities. The lecture theatre has recently had a makeover and is very well laid out. The lecturers I've encountered so far (fresher) have been brilliant and gained their doctorates from all number of universities including the much vaunted Oxford and Cambridge, the subjects are thrilling, the workload is high. The societies are generally well run and numerous, lot's of wednesday socials but an emphasis on 'work comes first' It's one of the few universities on the tube network that has a campus and it takes about 45 minutes to get into central.
Further to this, the university has: a bar (which is very good and the start of every social!) that offers really good food in the day and different activity nights including open mic nights (brilliant!). A club, which is actually pretty good - they expand the club to cover a whole floor on the last friday of every month for a bigger night. It has two restauants upstairs, one's like a nandos and the other 'the social kitchen' serves loads of different food and there's loads of seating. There's a subway on campus, HSBC, a chemist, a food shop, student union, volunteering etc. So yes lots!
The library is well packed and has dedicated sections. There's a quad where lot's of engaging stuff happens throughout the year (We're going to be pulling an all-nighter watching the election won a big screen there for the election next May hopefully! - lots of activities running alongside it too!) and there's always stuff going on along the promenade such as stalls and fresh fruit and veg markets.
So yes, all in all I would say as someone coming from Sussex, from the private school system and having worked for a few years prior to deciding university would be a worthwhile experience it's a really good uni! Just a shame there's not more people in tweed on a daily basis