Making D7800 into a Mesh

[Peter121]

I have a D7800 currently and want to fix WIFI coverage issues.  Should I consider adding something like the EX8000 or selling my D7800 and going for an Orbi or Linksys Velop solution instead.   Has anyone found a cheaper solution for turning D7800 into a mesh network more cheaply, Ex8000 isnt exactly cheap either.   Reason for wanting mesh is seamless roaming with same SSID rather than anything else.

[Peter121]

Thanks for the suggestions.   I've done a bit of research and

1) cost of adding a 6200, although cheap means I have to keep the whole lot together, need two of them to get the coverage overall.  I'm a lazy nerd so mesh ease-of-operation is appealing to avoid being IT support to the rest of the family.

2) Take your point about Orbi

3) Ubiquity is where I am going to go.  Sell my 7800 and put that towards the cost.  They also look visually unobtrusive.

Thanks for the feedback.