Space was functional, but very disappointing compared to Haiku. I rarely use Space (as in maybe once every couple of months), but I use Haiku every day several times a day. Adjusting to the unpleasant white background in Haiku has been difficult, especially for wall mounted iPads that now light up the entire room at night, but the functionality and ease of use of the app outweigh the cosmetic deficiencies. If the "new" app that's presumably replacing Space is an improvement over Haiku, I will certainly pay for it, but Haiku set the bar fairly high, so it's going to take a lot to make me feel like it's a big improvement. Space kind of made a dent in my confidence that "newer is better". I really do hope that the new app is a winner. The OmniPro ecosystem is starting to feel really dated compared to the rapidly advancing competing products. A new iOS app that's well executed could bring new life to the entire OmniPro environment.
Maybe one day there will also be native support for Amazon's Alexa in the OmniPro line? My current Hue Bridge / OpenHab interface at least gives me decent voice control over my Z-Wave lights, but a tighter integration without the patched together community developed components would be nice, and I can't see how HAI can continue to compete if they don't start embracing some of these more modern interfaces.