is the Orbi able to provide 300 mb over wifi ?

Thanks. I am so tempted to buy it now but I just bought  that costly D-Link 890 last year witch works good, I never expected it to do all 3 floors but the powerline adapter just is not cutting it.  A good extender would cost $200 if it gave me great speed I would be happy but afraid of waiting the money.  

My cverage is not the issues with current router on 2nd floor it is powerline adapter performance.  I guess paying $400 and being happy is better then paying $200 and the extender no preforming how I want.  I would not be sure what to do with old router  

anyway thanks for the imput 

I received my Orbi today and I must say I am impressed.  I do seem to some having placement issues.  I placed router on first floor back corner where my fiber connection comes in, then satalite on 2nd floor. This gave me 300 mb plus on first and 2nd flor but 100 mb on 3rd floor.  It seems 5G is not going up to the next floor and I am connecting to 2.4 gig.  

 I decided to try putting the satalite on the 3rd floor thinking the signal would be to low to connect to the base but it connects. With satalite on 3rd floor I get 200 to 240 mb. The 2nd floor seems to bounce from 2.4 to 5 gig judging on speed test ranging from 100 mb to 220 mb.  I made a few final adjustments to position hoping 2nd floor stays closer to 200.    Strangly placing the satalite on 3rd floor gave me more even distabuted higher speeds but not reaching max, then on 2nd floor from above

as you see placement is very important and feel only way to get maximum speed would having an Orbi on every floor but overlapping could then become an issue.   I have more then doubled and even tripled my speed in some areas from my previous set up    I am impressed with the unit and will expertment with different placement options in the next few days, but today I tried many