For me it was really good.I had 3DC,DS6,DS4,DS11 months and I found out I was pregnant a few days after we split up.
I had been in abusive relationship so for me going from walking on egg shells all the time,trying to keep the children quiet all the time,being constantly confused and upset because of his behaviour going to a happy home and happy children,me not feeling so low because of him was a huge relief.
Money wise it was really hard for a while,I didn't get any money from him for nearly 2 years.So I had to find out about benefits and what I could get help with.By the time my 4thDC DD was 20 months I was working part time,I was also going to college part time and working with Sure Start part time as the vice chair.
I didn't have any support family wise but I did have a few friends that would help out now and again and once I started working I was able to afford a recommended baby sitter so that I could have a night out when I wanted to.
A few times a month friends would come round and have dinner with me and the children and 2-3 times a month I'd have friends come round once the children were in bed and we'd order in a take-away and watch a movie so I was never short of company really.If anything I found that I made new friends and got to see my old friends alot more than I could have when I was in the bad relationship.
For me being a single Mum was a really positive experience.I know for me if I hadn't ended the relationship when I did I wouldn't have learned the things that I have learned about myself,I probably wouldn't have gone onto have the good relationship that I have with my children now,I wouldn't have made the new friends I made,I wouldn't have gone to college or have been able to work where I worked,I wouldn't have gone onto meet my now DH and I wouldn't have had our DD8 our 5th child.