How reliable is fyers platform/api?

Folks, it’s been a while i have traded with fyers. My intial experience isn’t good, charts used to hang, sometimes candles disappear for some timeperiod etc. Heard that Fyers have improved a lot now, but just wanted to know from you guys how reliable is Fyers platform/api now? Are there any downtime with the platform/api which you have noticed/experienced?

Thanks.