The delay and reverb sounds are excellent. If you like the delay/reverbs in the Helix/HX series, then you should get along with these just fine. It has most if not all of the current delay types (as of mid 2024) in the big L6 boxes and most of the reverbs as well. It's suitable for ambient, rock, prog, P&W, or experimental music. Downside for some might be that you do not have the level of tweakability that you do in the menu based systems but that hasn't stopped me from getting great delay and reverb tones.

The Good: It has a nice looper but I don't really use it. It has just about every current Helix/HX delay and reverb live in this box and they all sound good. Without MIDI you still have access to 6 presets and can run external tap tempo AND an expression pedal at the same time. It is a Reverb/Delay combo and you can run both at the same time and use an expression pedal to bring reverb or delay in and out of a preset. The expression pedal set up is also dead simple as is saving presets. There is a ton of power in the box.The minor gripes: It's an incredibly powerful box, but accessing that power is not always straightforward. The DL4 is not unique in this since it's attribute of many powerful pedals that do not have a menu. You need a cheat sheet or an IQ of 190+ to remember where the 'hidden' reverbs live. They are not listed on the box. Also, when you bypass a preset the greed LED is only dimmed not extinguished. I cannot for the life of me figure out why they did that. I know the HX Effects and Stomp behave similar, but that's more to remind you what effect type the footswitch represents. The DL4 does not need that and it has caught me more than once. Lastly is the size. It's a huge box and takes up a lot of pedalboard real estate.

If you are using it as a straight up delay finding and tweaking sounds is very easy. If you are going to be using reverbs as well you will need the cheat sheet. Still easy just not as convenient.

It's built like a tank.

At time of writing this is a $299 delay and reverb combo pedal that can be used without MIDI and has all the performance features of the 'big boys'. I think it's a great value

I've owned Line 6 products going back to the POD Bean. I've only reached out directly once or twice. They have a nice user support forum where there are tons of helpful people and I've never had an issue I could not resolve or get assistance with there.

It's an inspiring pedal that goes beyond the vanilla delay types and would be at home on just about any pedalboard provided you have the space.

I'm not old enough to get a discount at Denny's yet but I'm close, and I still gig out on a regular basis.

Rock, prog, classics, CCM