The OT7 is OK, but needs a lot of updates, fixes, and is not easy to use when it comes to selecting Lighting items. Leviton wastes a lot of the real estate on the OT7 and the rest is just a poor layout. How many times is there an accidental keypress on lighting???!? So often that complaints are resolved by creating an OT7 "Macros" button to trigger the "Lighting" item. Leviton seemed to be pushing the OT7 more for use with Bitwise, less about the Omni, but now seems to be heading a completely different direction this year, so not sure how long the OT7 idea will last anyway. Without renewed interest in fixing issues faster than many years later, other options will likely be preferred to the OT7 as the days wear on.
Haiku is cool, but complaints are that dev has slowed or stopped. You might consider running Snaplink on Android tablet vs OT7 - tablet wins EVERY TIME. Tablets tend to be less expensive and will run Snaplink robustly. Dedicating a few tablets here and there will give you a lot of control in a lot of places, with 3-5 tablets for the price of one used iPad or one new OT7.
Of course Snaplink on Android is NOT the same as Snaplink on PC, which the PC version is very antiquated and similarly looks old but usually works.
There are some oddities where Leviton doesn't seem to know if the right hand names something the same as the left hand (programming hand that is). In this case, OT7 uses different names than Snaplink. As example, Snaplink Buttons are the same as PC Access Buttons but are labeled "Macros" on the OT7. Snaplink "Control" is named "Units" in PC Access while OT7 is named "Lighting", even if the controlled item is not lighting but at least all three use the same (light bulb) icon. There is no intercom function on Snaplink though but...... OT7 intercom is flaky so you're not missing much!
Given the DST issue is an long time issue and there has been no update, I check every other week for OT7 updates, just hoping......................................................