What are your cycling goals, now and in the future? Ex, general cycling fitness or preparing to compete at events.
What are you looking for that Bkool does not provide? Ex, advanced analytics and training guidance.
Are your power meter pedals for a road or mountain bike?
What type of bike do you ride the most?
How many hours/week do you currently ride? What is the most you might ride in the future?
While many users rely on Zwift for their virtual rides and indoor racing events (ZRL), any platform that syncs with Strava can simultaneously feed your activity data to Xert.
Xert analysis and guidance works for indoor, outdoor, and virtual SIM activities regardless of the FIT file source.
One benefit to Zwift is the ability to ride a Xert workout using the Xert workout player while you ride virtually in Zwift world. I don’t know if Bkool supports that but neither is required. You can watch whatever you wish while a workout runs on the Xert phone app. I typically watch Netflix or YT videos on a big screen while training indoors. For HIT workouts I monitor the power chart and rainbow gauge on the Session Player instead. If my big screen is turned on it’s more for background noise.
If the majority of your activities track power indoors on a smart trainer or outdoors with a power meter, you have the data required for Xert analysis. Rides without power can be analyzed as long as you track HR. To improve HRDM accuracy add a cadence sensor.
While you evaluate the Xert platform you should find my post for newbies of value –
Onboarding steps for Xert Trial users and newbies - General - Xert Community Forum (xertonline.com)