Personally I like the Wago 222 series lever terminals, they are probably a bit slower to use than a push-in but they make modification easier and they are compatible with both solid/coarse strand installation cable and fine stranded flex.

Note that with spring based connectors (whether push-in or lever style) quality matters, a good quality spring-based contact can be very reliable but there is a lot of unbranded junk around.

Since I wrote my original post Wago introduced a newer series the 221 which support larger wires (they come in two sizes, the 221-4xx support up to 4 mm²/12AWG and the 221-6xx support up to 4 mm²/10AWG) and are physically smaller, but the levers on them are a bit more fragile than on the 222 series.

Personally I like the Wago 222 series lever terminals, they are probably a bit slower to use than a push-in but they make modification easier and they are compatible with both solid/coarse strand installation cable and fine stranded flex.

Note that with spring based connectors (whether push-in or lever style) quality matters, a good quality spring-based contact can be very reliable but there is a lot of unbranded junk around.

Since I wrote my original post Wago introduced a newer series the 221 which support larger wires (they come in two sizes, the 221-4xx support up to 4 mm²/12AWG and the 221-6xx support up to 6 mm²/10AWG) and are physically smaller, but the levers on them are a bit more fragile than on the 222 series.

Personally I like the wago 222 series lever terminals, they are probably a bit slower to use than a push-in but they make modification easier and they are compatible with both solid/coarse strand installation cable and fine stranded flex.

Note that with spring based connectors (whether push-in or lever style) quality matters, a good quality spring-based contact can be very reliable but there is a lot of unbranded junk around.

Personally I like the Wago 222 series lever terminals, they are probably a bit slower to use than a push-in but they make modification easier and they are compatible with both solid/coarse strand installation cable and fine stranded flex.

Note that with spring based connectors (whether push-in or lever style) quality matters, a good quality spring-based contact can be very reliable but there is a lot of unbranded junk around.

Since I wrote my original post Wago introduced a newer series the 221 which support larger wires (they come in two sizes, the 221-4xx support up to 4 mm²/12AWG and the 221-6xx support up to 4 mm²/10AWG) and are physically smaller, but the levers on them are a bit more fragile than on the 222 series.