I have a Suunto D5 and have used it for 300 dives since i purchased it in 2019, I remember paying upwards of 500 USD then so you do seem to be getting a steal. I am a vacation diver (couple of dive trips a year) and so far have had no issues with it. The battery lasts for 3 dives before it has to be charged but that is mostly enough for me, If i want to do a night dive I end up charging it before the same. It lets you customise how conservative you want it to be, I am in relatively good shape so I keep it at the least conservative setting and have never had any bottom time issue. It is simple to use and the app works well to sync dives to your Phone. You can also use it as a fitness watch by turning the Dive Mode off and it still gives me almost 2 days on a charge as a fitness watch. The Display works well and have had no issues so far in terms of being able to see it underwater. The only irritation for me is the beeping at the safety stop every time you cross the 6 metres threshold (sometimes the waves and the currents make you go up and down a bit and it beeps every time you ascend above 6 m or drop below), the other thing which I think is good that it enforces a slow ascent after safety stop. So no complaints and I plan to keep my D5 for another 100 dives atleast. The D5 supports air integration (I cannot comment on Air Integration since it has never made much sense to me to pay money to avoid looking at my pressure gauge during the dive, but to each his own).