This 264 page Watkins Shaw edition, popular for performances, is good, clearly set out and easy to read for both those new to 'Messiah' and the experienced requiring a copy of this edition.
BUT, it is thick (about 15mm), and hence relatively heavy due partly to a lengthy Preface but more so to its 33 page Appendix! It can make the arms ache when involved in a full performance, particularly when one has to stand for most of it!!
On the plus side, the current Amazon discounted price for a copy, with free p&p, is very attractive.