ive used tradestation for 6 years. really like it. ive been told wlb might be better but more advanced programming needed and i don't want to go there. im a trader not a programmer. there are other execution platforms i use besides tradestation. like ffasttrade, xtrader, transact. but for programming and testing ideas, tradestation 2000i or tradestation 8 is great. again i just wouldn't place my trades through there platform. I also rely on a different intra day data vendor. i don't use tradestations data. i highly recommend tradestation for certain things.
pat