DoTween is a bit more cryptic, you must test it a lot.
Unless you plan on manipulating the tween you created (like pausing it, or playing it backwards), you can kill it automatically.
The recycle option means that when you create a new tween for the first time, it generates a model (stored in the buffer IIRC), a template of sorts which will then be used again every time the same tween action requires a new "copy" of this tween.
I'm not sure if there's a Playmaker support for sequences yet. As I understand it, sequences are successions of chained tweens played in a given order.
Do not forget about the "set relative" option.
As a measure of security and peace of mind, I prefer to always set up the element that is going to be modified by a tween with an initialization phase even if in theory it shouldn't be necessary. This because with DoTween you can have a tween swap from being a "A to B" to "B to A"; in other words, it becomes a FROM tween instead of a TO tween, where the finishing state of your element is how it rests in your scene and the starting value is defined by the parameters you enter in the tween controls.
Also, as a rule of thumb, if you apply tween to RectTransforms, try to avoid changing the pivot point's position, just keep it in the center of the object because some actions will have behaviours which are just impossible to understand if you move such pivots and it's just not worth the hassle.