After a little trouble with the initial set up, I’ve had no network issues or other problems connecting to my 250. The ability to integrate all my music sources (Tidal, network server, Apple Podcasts, etc.) into one app is fantastic and was the main reason I chose Denon over other comparable brands. And the sound quality is noticeably better than using AirPlay to stream from the same sources. The actual interface is a bit clunky though and could use some improvements. My biggest complaint is that unlike most music apps, you have to unlock you phone and open the app every time you want to play/pause/skip a track or change the volume; there’s no ability to control the app from the Lock Screen or Dynamic Island. My other main complaint is that in Tidal, unlike in the app version, there’s no search function for my collection of saved music. Or even an ability to change the sorting other than alphabetically which means a lot of scrolling if you have a large number of saved albums, songs, etc. I don’t know if it’s the same for other streaming services but I would assume so. But I still would recommend this app for its ability to integrate many different sources, sound quality improvements, and just as a companion to a wonderful speaker!

I have been an audio and home theatre enthusiast for many decades. We also have a wired whole house sound system. We added the streaming music source to it via a PC with a remote control PC app and streaming has become our main source. The problem is that using the remote app for the PC with security log ins and navigating the various music sources was really clunky and inconvenient. I ended up being the only one who understood it well. HEOS in the new Marantz home threatre preamp has changed everything for the better. The audio quality is far superior. The variety and easy access to streaming sources is amazingly comprehensive. Control is super easy and intuitive. Our local radio stations streaming feeds allow us to enjoy local programming with the same ease. The Home theatre sources are all available as well. My wife and children love being able to use it as well as I can. I can’t tell you how much of a game changer this has been. We love HEOS. Note: We do have strong WiFi everywhere.

This is the worst music app ever. I have two HEOS 1 Series 2 speakers with go packs that look and sound amazing when they work. The problem is the app. Everytime I use them I have to go into the app and find the devices and reconnect them to Bluetooth. The app will come up and say "searching for devices" but won't find them, even if I am standing right next to them until I do it multiple times. Then I have to go back into Bluetooth and connect to the devices all over again. If you then try linking the two devices to play together which they call "pairing the devices" it takes multiple tries as well. I have to toggle back and forth between Bluetooth trying to connect and the HEOS app trying to pair until they finally work. This takes a minimum of 10 minutes and has to be done everytime you use them. The app doesn't remember anything you have done before and the devices constantly lose Bluetooth connection. The app is also very basic with no real features at all. I have had these for over a year praying for the day that Denon would try to save their reputation by updating this app with a new awesome version. NOT!! Very disappointed in Denon that they don't care enough to put a decent app out there to run an otherwise awesome product. They look good, sound great and the go pack is phenomenal. How could they package this together with such and archaid grade school level app? Go figure?

Issue 1: poor user interface (UI). This looks like an app that development engineers hacked up to get the system working. UI organization is horrible with many redundancies and non-intuitive paths to what you want to accomplish. I can live with issue 1, but … Issue 2: some units will not upgrade firmware to latest version. They “think” they’re updated but they’re not. As a result, units have different firmware revisions, which breaks your ability to group speakers to, for example, get them all playing the same music. After about 48 hours, the culprit speakers do update to latest firmware, but there’s no apparent way to control this other than leaving it up to the auto update feature and waiting until it does its thing in the background. Issue 3: I’m sure it’s a big challenge to make the app interface well with all the music streaming services out there. The app doesn’t allow for search in Pandora, which is a major pain. The app also doesn’t show or give access to any content on my iPhone.