Eh.

Only certain companies though are able to execute and maintain this type of stuff, and even then it’s still questionable whether it’s worth it or not. I would love to see where Home is in 2 and 5 years.

I worked at a company that used its own homegrown timekeeping and HR tool. Over the years it became poorly maintained as people came and gone and the company (and its needs) grew. Eventually it was decided to jump ship to an "off-the-shelf" product and everyone loved it because it actually did what it was supposed to do.

I highly doubt employees are going to feel more loved because the company decided to build their own wiki and address book.