Tried to download their software, it downloading on 50Kb: joke also tried to speak to a representative, no answer for 15min even i was first in queue. Reliable? not for me but thanks for trying
your requirements are not very clear. If you have problems with IB then just take free trials while the market is busy.
you can sign up for free trials without speaking to anybody. You want to use multicharts, you have a problem with IB datafeed, use www.iqfeed.net with multicharts which is much faster than IB. They have a free trial.
Not unicorn but a reasonable RT option charting platform, IB is a disgrace in that part and TOS is unreliable especially when there is high volatility.