Chennai

Srm has 3 campuses in Tamil Nadu-kattankulatur campus (main campus),ramapuram campus and vadapalani campus.I would assume that you are talking about main campus that is kattankulatur campus.First of all it is a huge campus with all facilities.But it's negatives are:
1.It's a 1 hour drive from chennai you have to live in srm hostel or you can live as a PG in nearby apartments.
2.For 1st year students it's compulsory to live in normal hostel with non attached bathrooms and washrooms and non ac rooms.Usually 3 people share one room,but you can demand for a single room too but prices will differ.You have to get mattress for yourself.Each person is provided by one cupboard each.You get Nri hostel from 2nd year.
3.Wasting and throwing food given to you in hostel is punishable.
4.College is usually tagged as a money making university.Fees is high.
5.Some teachers are very young and are alumni of the college with not much experience.
6.You are allowed to watch TV in media room only 3h ours on weekdays and full day on weekends.
Now coming to positives:
1.Placements really good.Extracurricular activities like aarush and Milan are awesome.There is no ragging,very friendly seniors.
2.Good atmosphere.In campus juice shops,departmental stores,playgrounds,10+food courts.
3.It has both north indians and south indians in a ratio where north indians are more.
You have to adjust with the food issue if you are a north indian.
Hope it helped.You can give SRM try.