Pros
The people. The Topcoder staff are talented, caring, and want the company to succeed.
Kontras
Wipro (the parent company to Topcoder) has little if any interest in keeping Topcoder around. Sales is driven through Wipro, so growth is out of the hands of the employees that actually work for Topcoder. I suspect the company will be shut down within 12 months, which is unfortunate given it's rich 20+ year history as a great platform for talented programmers to compete and find work.