Walshie, my MIL came last year and ended up staying for more or less the full 6 months. She has no job, no house. The missus done her Visa, as far as I'm aware there were no problems. FYI, she wanted to spend time with my son before he started school. Reason to return, the rest of the family can't cook :-)
Many on here will tell you horror stories and express caution, my experience of all Visa we've applied for has been very good and we've never had any issues.