IBM is a really big company and has several BUs, that vary in working culture and maturity. The culture varies greatly across teams, and depends to a large extent on the Manager.
As for pros and cons, IBM is not as flexible as it was before. Work from home is a thing of the past for many teams, as for agile development, co location of the team members is expected. But I have been able to come back home early, say by 5, and then take calls from home. I have been rarely expected to work on weekends, but again it depends on the role and the team.
Pros: Work from home for certain designations, support women and protect them against any sexual harassment (IBM is best in this case)
Cons: Not anything specific to women. you cant carry your child along. Though they have flexible hours culture depending on the manager.
On paper, the policies are extremely women friendly, however with personal experience, it all depends on the manager the employee is reporting to.
Pros: Work from home option is provided for quite a lot of projects, cab service is available for projects with shifts, paid maternity leave and unpaid year long sabbatical is provided.
Cons: work from home depends from on the project and clientele, cab isn't provided on individual basis and is dependant of availability of service respective to the location.
In the location that I work in, IBM provides no creche or day care facilities. However, what it does provide is a flexible work option. I can work from home maybe twice a week..
I guess IBM is women friendly ..