A slide-in would need a cabinet base constructed for it to rest on at the least. Typically the base is a working drawer of sorts so if this is something you'd like in your kitchen then I'd do it. If yours is gas, I'd check carefully where the gas line currently comes in and see if that will work with a slide in - that could be an expensive change if needed. Otherwise, I'm not aware of any "benefits" to a slide-in over a range....