If you're aiming mid-level or higher, it may be worth sacrificing some of that for more eye-appeal (such as using tile instead of tub surrounds, or refinishing floors if you happen to have wood under those carpets).

As for what is most appealing to renters/homebuyer; updated kitchen and baths are first concern for most.  

We plan our topics to appeal to investors who have already made it past the first deal or two. 

I have seen it happen.I try to find the undervalued properties,  you can also appeal the value if you feel it's not accurate or based on POS price, this has worked in my favor and also I have not been abel to move the assessed price, but it was worth trying.Good luck!

Rentometer is another resource for comp rents.Trulia has a "local info" section with heat maps to visualize data like crime and demographics.

I have spoken with many investors about how they handle their property taxes and the overwhelming majority seem to appeal their annual assessment only when the value jumps a certain percentage (say 5-10%).

We buy single family homes that would appeal to a family.

And, any place that's up for rent should already be 'clean' so it really doesn't differentiate your place from any other rental.I would get rid of 'excellent curb appeal'.

Yeah I am not sure either why a high home price would make wholesaling in that area more appealing.

Also it's in a class D neighborhood so we thought keeping it mixed use might be more appealing to potential buyers.